← All shelves
Every teardown
The whole library — filter by size, sort by revenue. Every business we have taken apart.
180 teardowns · $1M–$10MEvery teardownFortressesEasy to copy. Won anyway.Built on rented landNumbers straight from a filingDoesn't scale. On purpose.Still here after 15 yearsOne-time money
Club Caddie
SaaS
One ERP that runs the whole golf course.
$9M ARR
Stated · 2025, founder-stated
Crowded field; most scale came post-buyout.
★ The edge: He owns golf courses and had built and sold a golf-tech app before, so he knew the buyer well.
Open →
Peec AI
SaaS
$8.6M ARR in 14 months, priced under a $1B rival
$8.6M ARR
Stated · ARR, 14 months from launch
A category that may not outlast the hype
★ The edge: A focused product at $95-495/mo wins the mid-market that enterprise rivals price out — 300+ new customers a month.
Open →
Stamped
SaaS
Coded in two days. Sold for US$110 million.
US$11M ARR
Estimate · at acquisition, Dec 2020
Shopify owns distribution, billing and rank
★ The edge: Distributed by the Shopify App Store, so merchants find it on their own — growth cost almost nothing in ads.
Open →
HiddenLevers
SaaS
The risk tool advisors used to keep clients calm.
$8M
Stated · ARR at 2021 exit
Copyable math, finite US advisor market
★ The edge: Reframed copyable analytics as an advisor client-retention product — then 10x'd the price to prove it.
Open →
smallcase
Marketplace
Stock baskets that trade as one, via your broker.
₹67cr
Stated · $8M · FY24 rev from ops
85.8% of revenue is a toll brokers can cut.
★ The edge: smallcase never became a broker. It's a neutral rail on top of every major Indian broker, tolling each basket trade.
Open →
Submagic
SaaS
Turned its own users into a daily TikTok ad army.
$8M ARR
Estimate · run-rate, bootstrapped 2025
AI clipping is commoditizing toward free.
★ The edge: A creator-founder paid users 30% lifetime to post daily TikToks made in the tool - the product makes its own ads.
Open →
BlueNotary
Marketplace
Notarize documents online — matched to a live notary.
$7.5M
Estimate · ARR (2024 est., no VC)
⚠ Control low
commodity RON, price war
commodity RON, price war
★ The edge: Laws legalized online notarization in 45 states — BlueNotary bootstrapped in as the VC leader cut staff.
Open →
Empire Flippers
Marketplace
Buy & sell online businesses — vetting is the moat.
$7.2M
Estimate · 2024 · founder-stated
⚠ No recurring rev
lumpy, deal-by-deal
lumpy, deal-by-deal
★ The edge: Flipping sites wasn't new — they made it safe: every listing vetted, every handover done by their team.
Open →
BiggerPockets
Community
Real estate's town square — a free forum, 3M+ members.
$7M
Estimate · 2016 rev · last public
⚠ Need cyclical
under 1% pay
under 1% pay
★ The edge: Dorkin kept the forum free for years before charging — trust and UGC compounded into a moat rivals can't buy.
Open →
Konnect Insights
SaaS
50 failed pitches, then partners sold it for him.
$7M ARR
Stated · Bootstrapped · Mar 2025
Crowded category; features commoditize fast.
★ The edge: Self-funded by a parallel services business; agencies and ISV partners (Salesforce, Genesys) did the selling.
Open →
SpyFu
Data
Every keyword your rivals buy and rank for.
$7M+/yr
Estimate · founder-stated, 2019
Semrush/Ahrefs far outspend and out-cover it.
★ The edge: A 20-year archive of who bid on which keywords - history a new rival cannot backfill.
Open →
The Receptionist
SaaS
Bought a $250K side project. Grew it to $7M ARR.
$7M+
Stated · ARR, founder-stated
Crowded horizontal; Envoy's VC sets the pace.
★ The edge: Entered a crowded category by buying a $250K shelved app, then won on service and retention — no VC, 30 staff.
Open →
CheKin
SaaS
The guest-registration law, handled in one tap.
$6.8M
Estimate · est. 2024 rev (Latka)
OTAs could bundle registration for free.
★ The edge: The mandate is the moat: each country's guest-reporting law is a separate integration rivals must rebuild.
Open →
Ticket Tailor
SaaS
Event ticketing at a flat fee, not a % of the sale.
$6.6M
Estimate · revenue, 2024 (est)
No audience network — bring your own crowd.
★ The edge: Flat $0.30-$0.85 a ticket, never a % of price. An $80 ticket costs cents here vs about $7 on Eventbrite.
Open →
Balsamiq
SaaS
Ugly-on-purpose wireframes designers keep paying for
$6.58M
Stated · 2024 revenue
Figma now does low-fi; TAM is shrinking
★ The edge: Wireframes look hand-drawn on purpose: every mockup is instantly recognizable and markets the tool for free.
Open →
Holistiplan
SaaS
Reads a tax return, writes a planning report.
$6.5M
Estimate · est. rev · 39% US share
One feature; big suites could bundle it.
★ The edge: Both founders were advisors; Pine coded it himself. They cut a 45-min review to under a minute.
Open →
MyNewTerm
SaaS
A teacher beat a PE-backed job board at school hiring.
£5M+
Stated · about $6.5M · rev, founder-stated 2026
One country, one sector: UK schools.
★ The edge: Generic job boards sell adverts; MyNewTerm runs the whole school hire with safeguarding compliance built in.
Open →
Missive
SaaS
Collaborative team inbox: email, chat, tasks in one
$6M ARR
Stated · self-funded, no VC
Crowded market of VC-funded rivals.
★ The edge: A sibling badge-printing business funded 4.5 years of building, letting 3 devs out-craft VC-funded Front.
Open →
Sniffspot
Marketplace
Airbnb for dogs: rent a private yard by the hour.
$6M
Stated · 2025 revenue (2x YoY)
Cloneable software — density is the only moat
★ The edge: Repeat marketplace founder who cracked two-sided cold-start at 2nd Address, then aimed it at a category no one saw.
Open →
Osano
SaaS
Owns the web's cookie banner, sells the paid platform.
$5.9M
Estimate · Est. ARR 2024 (Latka)
Widget is commodity; OneTrust is far bigger.
★ The edge: Bought a cookie banner already on millions of sites, then let inbound demand build the paid privacy platform.
Open →
Ratsit
Data
Swedish tax data is public. Ratsit sells the search.
SEK 56.2M
Filed · about $5.8M · FY2025 revenue, 6 staff
One law change ends the whole model.
★ The edge: A constitutional publishing licence puts Ratsit's database outside GDPR, so nobody can demand deletion.
Open →
iDenfy
SaaS
Identity checks you pay for only when they pass.
€5.25M
Filed · FY2025 · LT filing (-13%)
Thin layer on a mandate; low pricing power.
★ The edge: Only KYC vendor that bills per approved check, not per attempt — cuts onboarding cost up to 70%.
Open →
TitleCapture
SaaS
Branded title-quote apps that win agent loyalty
$5.6M
Estimate · ARR · founder-reported '24
Finite US title niche, cyclical with housing.
★ The edge: One underwriter's sales manager introduced them to every affiliated agency — 1 to 150 customers in year one, zero CAC.
Open →
Flowcase (ex CV Partner)
SaaS
The CV tool consultancies renew 98% of the time.
$5.5M ARR
Stated · ARR, founder-stated (2024)
AI proposal tools could absorb the niche.
★ The edge: Turned a manual Word chore — building consultant CVs for tenders — into a bid tool firms won't drop.
Open →
Woodpecker.co
SaaS
The email hack they built for themselves went public.
$5.5M
Stated · 2024 revenue, official
A Gmail policy change can gut deliverability.
★ The edge: Sends cold email one-by-one from your own inbox with human-like pacing, so messages land in the inbox, not spam.
Open →
Less Annoying CRM
SaaS
The anti-Salesforce CRM for small business.
$5.4M
Estimate · 2024 rev · founder-stated
Simple CRM is easy to copy; low lock-in.
★ The edge: One flat $15/user price, no tiers, no lock-in, and real people answer support — rare in a CRM market.
Open →
SelectSoftware Reviews
Ad
HR-tech reviews. Vendors pay per high-intent lead.
$5.3M
Estimate · est. revenue (Latka, 2024)
Traffic lives and dies by Google's algorithm.
★ The edge: Ex-Bessemer VC who'd already built an HR SaaS. He knew the vendors and exactly what buyers were Googling.
Open →
UX Pilot
SaaS
AI design, sold straight into a 600K-reader newsletter.
$5.3M ARR
Stated · ARR, bootstrapped, 2/2026
AI design is crowded and churn-prone.
★ The edge: Adam Fard spent years building a UX-studio brand and a 600K newsletter; UX Pilot launched into demand he already owned.
Open →
A
Attribytes
SaaS
Cleaned messy food data, sold at nearly 10x revenue.
$5M ARR
Stated · peak ARR, 2019 (pre-sale)
One vertical, one data category, few buyers.
★ The edge: Owned clean, structured food-product data plus the distributor relationships a big PIM platform couldn't quickly copy.
Open →
Boardroom Insiders
Data
Deep C-suite dossiers, licensed to B2B sales teams.
$5M
Stated · ARR at $25M exit
Hand-written data; scaling means hiring.
★ The edge: 14 years and a 25-person research team built 29,000 deep exec profiles rivals couldn't scrape or fake.
Open →
CinchShare
SaaS
A stay-at-home mom's scheduler for direct sellers.
$5M+ ARR
Stated · founder-stated, Jan 2020
One niche, and Facebook controls the API.
★ The edge: Hootsuite serves every marketer. CinchShare serves one: a direct seller posting to Facebook groups all day.
Open →
Ebsta
SaaS
Rivals raised $1B+. Ebsta bootstrapped to $5M ARR.
$5M ARR
Estimate · ARR, 2024 · bootstrapped
Small budget against billion-dollar rivals.
★ The edge: Bootstrapped to about $5M ARR with 30 people while Gong, Clari and Outreach burned $1B+ on the same buyer.
Open →
EverBee
Data
Estimates what any Etsy listing earns — live.
$5M
Stated · ARR (founder-stated)
Estimates only — Etsy hides real sales.
★ The edge: A free Chrome overlay that lives on Etsy and reveals the one number Etsy hides: estimated sales per listing.
Open →
I
InsuredMine
SaaS
The CRM layer agents add to their agency system.
$5M
Stated · ARR, founder-stated
Sits atop an AMS it doesn't own.
★ The edge: Bootstrapped on $40K. An India dev team owns all the code and ships 600-700 features a year legacy rivals can't match.
Open →
InvoiceASAP
SaaS
$9/mo invoicing app, now $80/mo on embedded payments.
Just under $5M
Stated · annual rev, SaaS + payments
Payment partners can change terms anytime.
★ The edge: Owns the payments, not just the invoice, so it earns a cut of every job instead of a flat monthly fee.
Open →
M2M in Motion
SaaS
Financed the GPS box so small fleets paid $0 upfront
$5M+
Stated · revenue at 2021 exit
Thin software moat vs funded giants' scale
★ The edge: Sold to small fleets the funded giants ignored; financed the GPS box so a 5-truck shop paid nothing to start.
Open →
MoveitPro
SaaS
Movers ran on typewriters. He sold them the fix.
$5M ARR
Stated · founder-stated ARR, Nov 2022
Biggest lead source is $10K/mo of Google ads.
★ The edge: Third-generation mover. He funded five years of development out of the family moving company's profits.
Open →
Numeral
SaaS
One 2018 ruling made sales tax hell. Numeral eats it.
$5M
Estimate · ARR, 2025 (co-provided)
Merchant-of-record tools can absorb the need.
★ The edge: Rivals sell tax software. Numeral files for you: AI tracks 11,000 jurisdictions, staff answer the state mail.
Open →
REsimpli
SaaS
A real-estate wholesaler built the CRM he needed.
$5M+ ARR
Estimate · 2024, self-reported
One niche, US-only, tied to the flip cycle.
★ The edge: All-in-one OS for real-estate investors: CRM, dialer, skip tracing, direct mail, accounting — one login, one bill.
Open →
ScrapingBee
Dev
Two devs SEO'd a scraping API to a $5M exit.
$5M ARR
Stated · at 2025 exit, team of 6
A proxy wrapper a dev clones in a weekend.
★ The edge: 99% of revenue came from SEO. They out-wrote every rival, so devs Googling a scraping problem found them first.
Open →
smrtPhone
SaaS
Built for one CRM's users, not for everyone
Nearly $5M ARR
Stated · ARR stated on podcast, 2023
Customer count looks flat since 2023
★ The edge: Rivals bill per seat. smrtPhone bills per account: $62/mo covers 10 users, $104/mo unlimited.
Open →
SnapNHD
Data
A state law makes every home sale buy this report.
$5M
Stated · revenue before ICE deal
Half the business rides on one state's law.
★ The edge: Demand is written into California Civil Code 1103 - the seller cannot legally skip the report.
Open →
WebMerge
SaaS
Solo, $5M ARR, sold for $100M.
$5M+ ARR
Stated · ARR at sale · one employee
One narrow job a platform could absorb.
★ The edge: It lived in other apps' add-on marketplaces, so it grew on their distribution while one person kept the margins.
Open →
WeSuite
SaaS
Quoting software for security-system installers.
$5M
Stated · 2024 revenue · cash exit
Tiny niche: 16 years to reach $5M.
★ The edge: Ex-integrators built the one quoting tool that models security installs, recurring monitoring and commissions.
Open →
ClinicSense
SaaS
One tab for a massage therapist's whole practice.
$416K/mo
Stated · self-reported monthly
Crowded category, low ACV, niche TAM.
★ The edge: Won a crowded booking market by selling the outcome therapists want — clients rebooking — not just admin.
Open →
DashThis
SaaS
Bought out the CEO, then sold for low 8 figures
$4.7M
Stated · revenue at 2023 sale
One narrow job in a crowded reporting market.
★ The edge: Priced by dashboard count, not seats — an agency with 25 client reports pays for 25, and upgrades as it wins clients.
Open →
Userflow
SaaS
Onboarding SaaS. 3 people. $60M exit.
$4.6M
Stated · ARR at Beamer sale (2024)
Crowded onboarding category, thin moat
★ The edge: Ran $4.6M ARR on 3 people. Revenue-per-employee that high is what a strategic buyer pays a 13x premium for.
Open →
hellotax
SaaS
Two Amazon sellers turned EU VAT pain into a SaaS
$4.2M
Estimate · est. revenue, 2025
Human accountant layer caps scaling.
★ The edge: Amazon stores your stock abroad, so EU law forces you to VAT-register there — no threshold, no opt-out.
Open →
Baremetrics
SaaS
Subscription analytics run in public, sold for $4M.
$4M
Stated · All-cash sale '20, 2.65x ARR
Slow growth capped the exit at 2.65x ARR.
★ The edge: Ran a live public MRR dashboard for years - buyers verified revenue and churn before due diligence began.
Open →
C
ClickClaims
SaaS
The claims desk for storm-chasing insurance adjusters.
$4M+
Stated · ARR · 50 accounts
Tiny buyer pool, revenue rides the storms.
★ The edge: A claims adjuster who'd already built claims software inside a big firm — he knew the workflow before line one.
Open →
LawLytics
SaaS
A lawyer sold to lawyers, slowly, to $4M ARR.
Over $4M ARR
Stated · at 2021 exit, pre-buyout
Slow by design: 9 years to $4M ARR.
★ The edge: A practicing lawyer sold to lawyers, so peer trust closed firms — and a paid SEO-content service funded the software.
Open →
Tally
SaaS
The beautiful form builder that stays free.
$4M
Stated · ARR, bootstrapped (2025)
Zero moat — a form builder is easy to copy.
★ The edge: 99% free forever — unlimited forms and responses where Typeform gates them. The free tier is the growth engine.
Open →
TaskMagic
SaaS
Made a no-code tool buyable, then took a 7-figure exit.
$4M
Stated · total revenue, exited
Thin moat; grew on one-time lifetime deals
★ The edge: No-code automation for non-coders; recorded tasks become workflows. Sold on Acquire.com for mid-seven figures.
Open →
Valkre
SaaS
The account plan, out of PowerPoint and into software.
Beyond $4M ARR
Stated · KAM software subscriptions
Slow category to build; the niche is small.
★ The edge: Valkre wraps the SAMA method KAM teams already train on, so enterprises trust the tool before the demo.
Open →
Whispli
SaaS
The whistleblower who built the whistleblowing app.
$4M
Estimate · ARR · 2024 (Latka est.)
Crowded field; features commoditize fast.
★ The edge: Founder caught a $20.7M fraud himself, reported it to his CEO, then built the reporting tool he wished he'd had.
Open →
Cronometer
Data
The accuracy-obsessed answer to MyFitnessPal.
$3.8M
Estimate · Latka estimate, 2024
Free apps count calories fine for casuals.
★ The edge: Food data from lab-verified USDA and NCCDB databases, not crowd entries, so every number earns trust.
Open →
IPinfo
Data
Gave the IP API away. Sold the data underneath.
$3.7M/yr
Estimate · bootstrapped, no VC
free rivals cap the low-end price
★ The edge: A free API pulled in developers; owning the data — measured, not resold — is what enterprises now pay for.
Open →
Wall Street Oasis
Community
Free finance forum that sells interview courses.
$300K/mo
Stated · founder-stated · 2020
⚠ Control low
rides on Google traffic
rides on Google traffic
★ The edge: A forum earns pennies on ads; he stacked a niche ad network + paid courses on the same audience.
Open →
Distro
SaaS
Bootstrapped to $3.5M ARR, then sold lean.
$3.5M ARR
Stated · ARR at sale to Vensure
AI recruiting is crowded and commoditizing.
★ The edge: 14 people, about $3.5M ARR, no investors: clean books a strategic buyer could underwrite fast.
Open →
EODHD
Data
Sells clean market data by API, not a $27k terminal
$3.5M ARR
Stated · annual revenue, profitable
Resells licensed exchange data he doesn't own
★ The edge: Bloomberg-grade coverage: 60+ exchanges, 150K+ tickers, sold as a $20/mo API, not a $27k terminal.
Open →
HostiFi
SaaS
He charges MSPs to run software Ubiquiti gives away
$3.5M ARR
Estimate · ARR, founder blog 2025
The vendor now hosts it from $29/mo
★ The edge: Ubiquiti gives the controller software away free. HostiFi sells the part MSPs hate: servers, updates, backups, 2am.
Open →
Hudu
SaaS
The docs tool MSPs flee IT Glue for.
$3.5M
Estimate · Est. ARR, 2024
Entry: Low
free OSS clone exists
free OSS clone exists
★ The edge: When Kaseya bought IT Glue and hiked prices, Hudu became the escape route the r/msp exodus took.
Open →
Canny
SaaS
Two ex-Facebook founders. One feedback tool. No funding.
$3.4M
Stated · ARR, bootstrapped
Easy to clone; a dozen cheaper rivals.
★ The edge: A designer-engineer couple left Facebook and built a $3.4M product-feedback SaaS with 17 people and $0 raised.
Open →
Geocaching.com
Community
A GPS treasure hunt, sold as a subscription.
3.4M+
Stated · active geocaches worldwide
Unpaid volunteers keep the whole map alive.
★ The edge: Users hide and maintain every cache free; Groundspeak owns the one global database and charges to search it well.
Open →
Quickli
SaaS
50 lenders' loan calculators, one broker tool.
A$5M
Stated · ARR · about US$3.3M
Borrowed lender logic, one-country ceiling
★ The edge: A working broker + an engineer killed re-keying each client into 50 lender calcs. The broker network spread it free.
Open →
Datawrapper
Data
Gave charts away free, became the newsroom standard.
$3.2M ARR
Estimate · est. ARR (Latka, 2025)
Design giants can bundle charts free.
★ The edge: Built for one job: charts a newsroom can embed in seconds, free until the whole staff depends on it.
Open →
PerformLine
SaaS
It reads your affiliates' ads before the regulator does.
$3.2M
Estimate · 2021 ARR, self-report
Demand rises and falls with enforcement.
★ The edge: Brands are liable for affiliate ads they never see. PerformLine auto-discovers those hidden channels and scores them.
Open →
Rezi
SaaS
Bad grades, great resume. Now $259K a month.
$259,535 MRR
Estimate · Stripe-verified MRR
Traffic leans on one keyword cluster.
★ The edge: First resume builder to ship GPT-3, in December 2020 - two years before ChatGPT made it a category.
Open →
BoomCloud
SaaS
Turns dental practices into subscription businesses.
$3M
Stated · ARR (2026)
Crowded field; a free giant, Kleer, looms.
★ The edge: A dental-lab insider selling the one workflow incumbents skip: memberships that free practices from insurance.
Open →
ComplyCube
SaaS
Bootstrapped the KYC check every fintech must run.
$3M
Estimate · 2024 ARR (Latka)
IDV commoditizes; Stripe/Plaid bundle it free
★ The edge: Bootstrapped AML/KYC checks the law forces every fintech to run — self-serve API undercuts VC giants Onfido, Sumsub.
Open →
EmailOctopus
SaaS
The Ryanair of email marketing
$3M+
Stated · ARR · founder-stated 2023
Anyone can wrap SES; price is the only moat
★ The edge: A simple UI on Amazon SES: send a million emails for under $100, undercutting Mailchimp with no mail servers to run.
Open →
Gymdesk
SaaS
Gym software a black belt built to beat MindBody
$3M
Stated · ARR before 2024 exit
Crowded field; flat pricing is easy to copy.
★ The edge: Flat price by member count, every feature in — the opposite of the upsell maze gym owners hated.
Open →
HypeProxies
Dev
Proxies that let bots cop hyped sneakers. $3M/yr.
$3M/yr
Estimate · annual, founder-stated
Lives and dies on the resale-bot economy.
★ The edge: Tuned US ISP IPs that beat retail checkout bots — a niche the enterprise data giants never bothered to serve.
Open →
Kintsugi
SaaS
Wayfair forced US sellers to file. They automate it.
$3M
Stated · 2024 annual revenue
Vertex is both its investor and its rival.
★ The edge: Since Wayfair (2018), any seller crossing a state's threshold must register and file there — or owe back taxes.
Open →
Left Main REI
SaaS
Salesforce quoted $100K. She learned to code instead.
Nearly $3 million ARR
Stated · Dec 2023, no funding taken
On Salesforce, so Salesforce sets the rules.
★ The edge: A nurse practitioner who flipped houses built the CRM on Salesforce herself, then sold it to investors like her.
Open →
Quaderno
SaaS
When the EU rewrote VAT, Quaderno sold the fix.
$3M
Estimate · est. ARR near 2023 exit
Control low
Stripe can bundle the tax layer
Stripe can bundle the tax layer
★ The edge: Sat inside Stripe's checkout, so it already owned the exact data the new VAT law made legally mandatory.
Open →
Referral Rock
SaaS
Charged customers day one. Bootstrapped to $3M.
$3M/yr
Stated · annual revenue
SEO-led growth has hit a plateau.
★ The edge: Bootstrapped, profitable, founder-owned since 2015. Grew to about $3M mostly on inbound SEO and founder-led sales.
Open →
Rella
SaaS
Made $0 on creators. Pivoted to teams, hit $3M.
$3M ARR
Stated · ARR run-rate · 4 staff
Growth leans on her personal audience.
★ The edge: She owns a 300K+ YouTube channel of her exact buyers, so signups come free where rivals pay for every lead.
Open →
SerpApi
Dev
The SERP API that quietly became AI's search backend.
$3M/yr
Estimate · Est. ARR (third-party)
⚠ Control low
rents its data
rents its data
★ The edge: A boring 2017 SERP-scraper is now the live-search feed for AI labs — pickaxes sold into the gold rush.
Open →
Silktide
SaaS
The free accessibility checker that upsells compliance.
$3M/yr
Estimate · 2024 ARR (Latka est.)
Axe and AI commoditize the core scan.
★ The edge: Twenty years of free scanners built the top-of-funnel; regulation (EAA, ADA) now forces every site through it.
Open →
Social Snowball
SaaS
Turn a brand's own customers into paid affiliates.
$3M FY24, +200%
Filed · FY24, in acquirer's filing
Rides Shopify; platform sets the rules.
★ The edge: One-click turns any buyer into an affiliate; deep Shopify hooks make rivals feel bolted-on.
Open →
Vacation Tracker
SaaS
PTO tracking built inside Slack, not bolted on.
$3M
Stated · ARR, founder-stated
Thin, cheap feature an HRIS can bundle free.
★ The edge: Built Slack-first: request and approve leave without leaving the chat app teams live in all day.
Open →
Towbook
SaaS
Dispatch, impound and billing for tow companies.
$2.9M
Estimate · Est. ARR 2024 (Latka)
Niche TAM ceiling; the code is copyable
★ The edge: Run a tow company's dispatch, impounds and billing through one app and switching costs quietly become the moat.
Open →
Booqable
SaaS
One booking OS for any rental business.
$2.8M
Estimate · est. ARR (Latka, 2025)
A fragmented long tail; low ACV, slow scale.
★ The edge: They ran the Netherlands' No.1 rental chain first, then sold the exact software that got them there.
Open →
Mangools
Data
Pretty, half-price SEO data that out-charms giants
$2.7M/yr
Stated · founder-stated, 2018
Rents its keyword data; cheap is copyable
★ The edge: A market of ugly $130/mo incumbents (Ahrefs, Semrush); one Slovak dev shipped a beautiful $29/mo tool people love.
Open →
eRank
SaaS
SEO keyword data for sellers Etsy keeps blind.
$2.6M
Estimate · est. ARR, self-funded
Control low
on Etsy's rented land
on Etsy's rented land
★ The edge: A free keyword tier gave data-starved Etsy sellers what Etsy hid, then upsold a slice at $6-30/mo.
Open →
MyExpatTaxes
SaaS
File US taxes from abroad — flat fee, not a CPA bill.
$2.5M
Estimate · revenue · 2021
⚠ Scale capped
about 9M expats, seasonal
about 9M expats, seasonal
★ The edge: consumer tax software ignores the expat-only forms (2555, FBAR, 8938) — this was built around exactly those.
Open →
Prerender.io
Dev
Google can't read JS sites. He hosted the fix.
$2.5M ARR
Stated · founder-stated, at exit
Thin margins; SSR frameworks erase the need.
★ The edge: Open-sourced the code — 24k day-one visitors, free marketing — then sold the hosted version nobody wants to run.
Open →
Cometly
SaaS
$53.8K MRR in its first week — one affiliate.
$208,270 MRR
Estimate · verified MRR (Stripe)
Lives or dies on ad-platform data access.
★ The edge: Bootstrapped, built for B2B SaaS while VC rivals chase e-commerce; launched via a partner's audience, not slow content.
Open →
Sharetribe
SaaS
The no-code platform behind 1,000+ marketplaces.
$2.4M
Stated · ARR (2023, founder)
No-code ceiling: buyers outgrow it and churn.
★ The edge: Ran a marketplace before selling the tool to build one — operator instincts rivals lack, plus a vow never to sell.
Open →
ZenMaid
SaaS
Booking software for maid services, and only them.
$200K MRR
Stated · founder-stated, 2024
Tiny, price-sensitive niche caps the ceiling.
★ The edge: He ran a maid service before building the tool, so he knows the exact workflows generic field-service apps miss.
Open →
1Lookup
Data
Stop bad data with one pay-per-lookup API.
$199K MRR
Estimate · Stripe-verified live
Data is licensed, not owned; thin moat.
★ The edge: Rivals sell phone, email and IP checks as three products. 1Lookup makes them one API, one credit, no minimums.
Open →
Freemius
Dev
Plugin devs sell; Freemius handles tax and billing.
$2.3M
Estimate · ARR (est., Latka 2025)
Best customers have the most reason to leave.
★ The edge: He sold his own WP plugin and spent a year on billing, tax and licensing — so he built the layer other devs now rent.
Open →
Equipe
SaaS
Europe's horse shows run on a three-person company
SEK 22.6M
Filed · about $2.2M · FY25 turnover, filed
Near-total at home, so fee rises make news
★ The edge: In 2015 it dropped the flat fee and billed about EUR 1 per start. Small clubs could afford it; Europe adopted it.
Open →
Moraware
SaaS
The default software for countertop fabrication shops.
$2.2M
Estimate · ARR, Latka est. 2025
Countertop-only market caps growth.
★ The edge: A co-founder's brother ran a countertop shop, so v1 was built inside a real fabricator's daily workflow.
Open →
Usersnap
SaaS
Screenshot and annotate bug reports for product teams.
$2.2M
Stated · annual rev · 2023 exit
⚠ Entry low
crowded feedback niche
crowded feedback niche
★ The edge: A serial exiter joined in 2018 and made growth run on SEO, not founders — exactly what aggregators buy.
Open →
Alosant
SaaS
White-label the app; every community renews
$2M ARR
Stated · ARR, bootstrapped · 2022
Small TAM: master-planned communities only.
★ The edge: White-labeled under each community's brand on 3-5 year deals, so residents adopt fast and developers rarely churn.
Open →
CoinLedger
SaaS
Every crypto trade is taxable. They rank #1 for it.
$2M+ ARR
Stated · bootstrapped pre-VC round
Revenue swings with the crypto price cycle.
★ The edge: The tax law creates the search; CoinLedger owns it - ranking #1 for 'crypto taxes' instead of buying ads.
Open →
CrazyLister
SaaS
Top eBay sellers sold their listing craft as software.
$2M/yr
Estimate · peak rev; eBay market fell
Rises and falls with eBay's seller base.
★ The edge: They were award-winning eBay sellers before they were founders, so the templates carry real selling know-how.
Open →
DripJobs
SaaS
The CRM a painting contractor built for his own trade.
$2M
Estimate · 2025 revenue (est.)
Audience edge stops in trades he's unknown.
★ The edge: A painting contractor built the CRM for his own trade — and already had the contractor audience to sell it to.
Open →
GoProposal
SaaS
Proposal and pricing software for accountants.
£1.5M
Stated · $2M · ARR · 2021 exit
⚠ Scale capped
one vertical, UK-first
one vertical, UK-first
★ The edge: The product was a £4,000 ($5K) WordPress plugin — the moat was owning the accountants' attention first.
Open →
Product Fruits
SaaS
A game designer's onboarding psychology, sold as SaaS.
Past $2M ARR
Stated · founder-stated, 2026
Crowded category, low switching costs.
★ The edge: One affordable, all-in-one adoption suite from $96/mo, aimed at the SMBs that WalkMe and Pendo price out.
Open →
Publer
SaaS
Bootstrapped scheduler that nearly folded twice
$2M ARR
Stated · 2024 sales, bootstrapped
Thin moat; scheduling is a crowded commodity.
★ The edge: Built-in distribution: one of two Facebook apps he already owned was profitable, probably seeding Publer's first users.
Open →
Scrapingdog
Data
One API call scrapes any site. SEO built the funnel.
$2M ARR
Stated · self-reported (Dec 2025)
Every target site can detect and block you.
★ The edge: Years of SEO: hundreds of 'how to scrape X' guides rank on Google, so buyers arrive pre-sold and CAC stays near zero.
Open →
Wynter
Data
Ask your exact B2B buyers, get answers in 48 hours.
$2M+ ARR
Stated · founder-stated, 2023
The owned panel is both moat and bottleneck.
★ The edge: Rented panels were full of fraud, so Wynter built its own vetted B2B panel from CXL's marketing audience.
Open →
Zipchat
SaaS
AI sales agent for e-commerce, about $2M ARR.
$2M ARR
Stated · MRR $167K, stated Aug 2026
Built on Shopify, which once killed him.
★ The edge: Ran Checkout X to $8M ARR before Shopify killed it. He knows Shopify merchants and their support pain cold.
Open →
Savvy Navvy
SaaS
Google Maps for boats — a sailor's fix for clunky charts
£1.5M ARR
Stated · about $1.9M · ARR, end 2022 (self-report)
Chart data is licensed; rivals own the helm.
★ The edge: A Google routing engineer turned hours of chart-plotting into one tap; boaters funded the app five times over.
Open →
AwardWallet
Data
Tracks every mile and point you own, in one place.
$150K/mo
Stated · monthly rev, founder 2020
Airlines can cut off access any time.
★ The edge: Two decades maintaining scrapers for 600+ loyalty programs behind member logins — a data moat rivals can't clone fast.
Open →
MrScraper
Dev
Bought a broken scraper for its traffic, not code.
$150K+/mo
Stated · founder-stated, Feb 2025
Commodity scraping market, low moat.
★ The edge: Its SEO traffic proved demand before he paid a cent — he bought validation cheap, then rebuilt to convert it.
Open →
Studio Ninja
SaaS
The CRM a wedding photographer built for himself.
$1.8M/yr
Stated · about 7,000 subs, pre-exit
Tied to one niche; later sold to a roll-up.
★ The edge: Ten years shooting 60+ weddings a year made him his own ideal buyer; he pre-sold 100 lifetime seats before writing code.
Open →
Sudowrite
SaaS
The AI writing partner built only for fiction.
$1.8M
Estimate · ARR est.; profitable
Its core AI is rented from frontier labs.
★ The edge: The one creative niche most AI tools anger — fiction writers — served by founders who are published novelists.
Open →
Wavve
SaaS
Turned down $1M, fixed churn, sold for mid-7 figures
$150K MRR
Stated · at sale to Calm Capital
Audiograms are a feature rivals can clone.
★ The edge: A weekend side project after 18 months on the wrong product. Every video carried a Wavve badge, so sharing sold it.
Open →
Barn2 Plugins
SaaS
WooCommerce plugins built from client requests
$1,786,586
Stated · 2025 revenue, self-reported
New sales fell 17.8%; growth nearly flat.
★ The edge: Free WordPress.org versions convert to paid; 61% of revenue is renewals; publishes exact numbers yearly.
Open →
Songstats
Data
An artist's numbers from 14 platforms, one dashboard
$145K/mo
Stated · self-reported MRR
Every number is borrowed from platform APIs.
★ The edge: It combines 14 music services into one view; most rivals track fewer or gate breadth behind higher tiers.
Open →
Mobbin
Data
Real app UIs, hand-tagged so designers can search them
$1.6M
Estimate · 2024 ARR, estimate
The moat is manual labor that never ends.
★ The edge: Rivals post single screenshots; Mobbin hand-records entire multi-screen flows, tagged by pattern and refreshed weekly.
Open →
Sufio
SaaS
Shopify's invoices aren't legal. Sufio's are.
$1.6M
Estimate · 2024 rev · est. (Latka)
Rents its whole house on Shopify.
★ The edge: Turns Shopify's generic invoices into per-country, accountant-validated tax documents that survive an audit.
Open →
Publisher Rocket
Data
Amazon keyword research authors buy once.
$130K/mo
Stated · Jul 2021, founder-stated
Time low
one-time sale, no recurring
one-time sale, no recurring
★ The edge: One-time $199, no subscription — sold to the free audience its sister blog Kindlepreneur already owned.
Open →
PropertyData
Data
Enterprise property data, unbundled to £14 a month.
$1.54M
Stated · ARR · founder-stated 2022
Cheap tiers, capped revenue per user.
★ The edge: Sells UK property market data to small investors at £14-60/mo, a fraction of the £500+/mo enterprise tools charge.
Open →
Castos
SaaS
Podcast hosting sold through a free WordPress plugin
just under $1.5M
Stated · ARR (2021, stated)
Commodity hosting; giants bundle it free.
★ The edge: Bought an unloved free WordPress plugin and grew it to 30K+ podcasts — each one a hosting lead.
Open →
Contentpace
SaaS
SEO content tool that sold fast on Acquire.com
$1.5M
Stated · lifetime rev, LTD-heavy
Lifetime deals left thin recurring MRR
★ The edge: Content-brief builder shaped by user pain, not rival headlines; a giant AppSumo LTD brought in 4,000 paying teams.
Open →
FaceUp
SaaS
School bullying app the law turned into B2B.
$1.5M+
Stated · ARR, company-stated
A reporting form is trivial to clone.
★ The edge: A school anti-bullying app that the EU Whistleblowing Directive turned into a paid corporate compliance product.
Open →
Happierleads
SaaS
Solo founder unmasks web visitors, $1.5M ARR, 0 staff
$1.5M ARR
Stated · ARR, solo, bootstrapped
Built on a third-party data source he rents
★ The edge: Owns the data source and the sending inboxes, so cold email costs him almost nothing to run at scale.
Open →
Seats.aero
Data
The award-flight search engine airlines sued.
$1.5M ARR
Stated · end 2023 · founder
Airlines can block or sue the data feed.
★ The edge: A lone security researcher scrapes the award data airlines hide, and rents it back at $9.99/mo.
Open →
SparkToro
Data
The moat was the founder's audience, not the code.
$1.5M
Stated · ARR · yr-2 (2022)
⚠ Scale capped
niche market by design
niche market by design
★ The edge: The founder arrived with a ready-made marketing audience, so 200 people sign up free every day - zero ad spend.
Open →
Zigpoll
SaaS
Analytics show the what; Zigpoll asks buyers the why.
$125K MRR
Stated · run rate about $1.5M ARR
One platform: most signups come via Shopify.
★ The edge: One-click Shopify install puts the survey inside checkout; a third of signups arrive free from the app store.
Open →
Modern Producers
Marketplace
He made the hits. Now he sells the sounds.
$120k/mo
Stated · monthly revenue, 2020
Shopify store; vendors keep the rights
★ The edge: Multi-platinum credits for 50 Cent and Wu-Tang. Producers trusted his ear, so vendors brought him their kits.
Open →
Typefully
SaaS
The marketing side project outgrew the main product.
$1.4M ARR
Stated · ARR (Starter Story, 2024)
Depends on X's API and platform goodwill.
★ The edge: Two experienced devs with a built-in Twitter audience from Mailbrew, selling an X tool to X users on X.
Open →
Vendoo
SaaS
One upload. Ten marketplaces. Zero retyping.
$1.4M
Stated · 2020 revenue (reported)
Rides on marketplaces that can ban it.
★ The edge: Founder resold since 2007, built the cross-poster he needed, then grew via reseller YouTubers with the same pain.
Open →
CloudSpot
SaaS
Photo-delivery galleries pros sell prints through
$1.2M/yr
Estimate · 2024 revenue, est.
Commoditized galleries; free rivals abound
★ The edge: Founder shot weddings for a decade - the product speaks fluent photographer, and the community already trusts him.
Open →
Storeganise
SaaS
Ran a storage business, sold the software instead.
$1.2M
Estimate · est. ARR, bootstrapped
Tiny TAM; giant Storable could copy it.
★ The edge: Built the software to run their own valet-storage firm, then sold it to operators in 50 countries.
Open →
TutorCruncher
SaaS
Scheduling, billing and payments for tutoring firms.
$1.2M
Stated · ARR (2021)
Small niche; limited by tutoring-agency TAM.
★ The edge: The co-founder is Pydantic's creator — that engineering caliber let a bootstrapped team out-build clunky incumbents.
Open →
Tweet Hunter
SaaS
Twitter growth tool, sold to its power user.
$100K MRR
Stated · at 2022 lempire sale
100% dependent on Twitter/LinkedIn APIs.
★ The edge: Built in public on X to 115K followers, so the audience that grew the product also included the buyer who used it daily.
Open →
Zen Arbitrage
SaaS
He built the audience, then sold them the tool.
$90K/mo
Stated · MRR at 2022 exit
Rides Amazon's price gap; guru-led.
★ The edge: Built the buyers before the product: years of book-arbitrage courses meant the $97/mo tool launched to a waiting list.
Open →
4 Day Week
Ad
The job board for 4-day weeks — now a 500K audience.
$1M/yr
Estimate · est.; solo, ad-funded
Leans on one trend and Google's goodwill.
★ The edge: A search-retrieval PhD out-SEO'd job giants by owning one query nobody fought for: '4 day week jobs'.
Open →
Astalty
SaaS
1,400+ NDIS providers run their back office on it.
$1M ARR
Estimate · ARR, bootstrapped (2024)
One country, one government scheme.
★ The edge: The founders worked inside NDIS support coordination and built for their own daily pain, not a spec.
Open →
AuditMiner
SaaS
She audited 401k plans for 15 years, then automated it
$1M ARR
Stated · ARR (2022, last stated)
Only US CPA firms doing ERISA plan audits
★ The edge: She had done the job by hand for 15 years, so she knew which steps were worth parsing and which auditors would pay.
Open →
Autoklose
SaaS
A cold-email tool sold at 5x by owning its database.
$1M revenue
Stated · revenue at 2020 exit
Deliverability it can't fully control.
★ The edge: Rivals sold software and made reps bring their own list. Autoklose bundled a 40M-contact database into the app.
Open →
Beeminder
SaaS
The habit tracker that charges you when you fail.
$1M
Estimate · ARR (2024, est.)
Paying to be punished repels the masses.
★ The edge: Rivals sell success. Beeminder gets paid the moment you fail — your own procrastination is the meter.
Open →
BetaList
Marketplace
The startup directory that charges you to skip its line.
$1M
Stated · cumulative over 10 years
Entry low
directory = a weekend clone
directory = a weekend clone
★ The edge: Turned its review backlog into 70% of revenue by charging startups to skip the queue.
Open →
BoosterHub
SaaS
One login replaces the 18 a booster club juggles.
$1M
Stated · ARR, founder-stated
Tiny niche; volunteer buyers churn yearly.
★ The edge: She was the exact customer — a booster-club president — with 30 years of high-touch sales behind her.
Open →
Carrd
SaaS
A one-page site builder — 4M+ sites, nearly solo.
$1M+ ARR
Stated · ARR · founder-stated
Trivial to clone · low switching cost
★ The edge: too simple to misuse — a $19/yr one-page tool run solo, with a viral 'Made with Carrd' footer.
Open →
EssayGrader
SaaS
Bought a $5K/mo grader. Now 100,000 teachers use it.
$1M ARR
Estimate · on track, Jul 2025
AI essay grading is trivial to clone
★ The edge: The builder proved teachers would pay. Chan, an ex-teacher, added what the builder lacked: reach into classrooms.
Open →
eWebinar
SaaS
Record once. Run it as a live webinar forever.
$1M ARR
Estimate · ARR · bootstrapped, 2023
Small ACV; PLG growth is brutally hard.
★ The edge: Live webinars make you re-run the same talk forever. eWebinar plays a recording on a schedule, with live-style chat.
Open →
Featurebase
SaaS
A cheaper Canny that ranks for "Canny alternative."
$1M+
Stated · ARR, 2025 (bootstrapped)
Board is a weekend clone; SEO is rentable.
★ The edge: Can't defend a voting board, so they defended distribution: undercut Canny and ranked for every rival's name.
Open →
Fomo
SaaS
Social-proof popups, bought with the app's own cash.
$1M+ ARR
Stated · peaked $1.3M, sold 2022
Social proof is a commodity; low moat.
★ The edge: Recurring MRR let Kulp buy a $180K/yr app with near-zero cash down; integrations and brand made the later sale clean.
Open →
Leadmore AI
SaaS
Reddit leads, minus the account bans.
$1M ARR
Stated · run-rate (self-stated)
Reddit can ban the managed pool at once
★ The edge: Rivals reply from your account. Leadmore posts from its own aged pool — a ban hits Leadmore, not you.
Open →
Lemon Squeezy
SaaS
The merchant of record that files sales tax for sellers.
$1M ARR
Stated · 9 months after 2021 launch
Thin layer on Stripe · no owned rails
★ The edge: not a payments tool but a liability shield — it files every country's sales tax for you.
Open →
Papermark
SaaS
Open-source DocSend — share decks, track every view.
$1M+
Stated · ARR · 2025 · disclosed
⚠ Entry low
code is forkable, moat is SEO
code is forkable, moat is SEO
★ The edge: DocSend's core was never secret — Papermark open-sourced it, gave it free, then charged teams for data rooms.
Open →
Pckgr
SaaS
The most boring SaaS on the internet, at $1M ARR.
Over $1M ARR
Stated · ARR, bootstrapped
Microsoft could fold it into Intune.
★ The edge: Enterprise Intune tools priced out small shops. Pckgr sells the same packaging automation from $49/mo.
Open →
Photopea
Ad
A free Photoshop clone. One dev. $100K/mo in ads.
$1M/yr
Stated · ads, founder 2020-21
Bus factor 1; ad rates set his income.
★ The edge: Runs 100% in your browser tab — near-zero server cost turns 6-cent ad-hours into 90%+ margin at global scale.
Open →
Plausible Analytics
Dev
Beat Google Analytics on privacy — fully open-source.
$1M+
Stated · ARR · public
Crowded field · GA is free
★ The edge: trust is the product here — so they open-sourced everything (MIT), and let GDPR rulings drive the demand.
Open →
Printavo
SaaS
A screen printer built the software his shop needed
$1M+ ARR
Stated · founder-stated, 2017
Thin tech moat — a dozen lookalike rivals
★ The edge: He ran a screen-print shop first, then built the tool for his own order chaos — an insider selling to insiders.
Open →
ProjectionLab
SaaS
Plan your whole financial life, no bank linking
$1M ARR
Stated · MRR $83.3K · Jun 2025
Manual entry; audience caps at money nerds
★ The edge: Charges for what rivals give free — because never linking or selling your data is what money nerds pay for.
Open →
RepairDesk
SaaS
The POS a phone-repair shop runs all day on.
$1M+ ARR
Stated · founder-stated (2020)
Finite, softening repair-shop TAM.
★ The edge: Built by a founder off his brother's repair counter - parts, IMEI and warranty flow fit how shops really run.
Open →
Senja
SaaS
Collect testimonials, show them off as social proof.
$1M ARR
Stated · self-reported · Nov 2025
A feature rivals can bundle away for free.
★ The edge: Every embedded testimonial widget carries a 'Powered by Senja' link — each customer's site sells the next one.
Open →
SocialBee
SaaS
The social tool sold by hand before it was built
$1M+ ARR
Stated · founder-stated (2023)
Crowded niche — incumbents copy every feature
★ The edge: Files posts into categories that auto-recycle, so a tiny evergreen library fills the calendar for months.
Open →
Subscribr
SaaS
AI scriptwriter for YouTube, pre-sold before it existed.
$1M/yr
Stated · run rate, founder-stated
Low entry barrier — AI clones everywhere.
★ The edge: Ex-CTO of Seth Godin's Squidoo pre-sold $20K to a warm audience, then shipped an AI script tool fast.
Open →
Termageddon
SaaS
A privacy attorney's policies that update themselves
$1M+
Stated · Partner recurring rev '24
Entry low
AI drafts one free
AI drafts one free
★ The edge: Only policy generator whose founder is a licensed privacy attorney; policies auto-update as laws change.
Open →
Tiiny Host
SaaS
Drag a PDF in, get a live link out. $1M a year.
$1M ARR
Estimate · founder interview, Apr 2026
Every signup arrives via a Google ranking.
★ The edge: Sells hosting to people who never searched for hosting. They searched 'how to upload a PDF'.
Open →
Traffic Think Tank
Community
3 SEO influencers rented out their group chat.
$1M ARR
Stated · sold to Semrush, 2023
Format is free to copy; the audience isn't.
★ The edge: Two founders spent a decade building a 40,000 SEO email list. Launch day was warm: 100 paid seats gone in 72 hours.
Open →
Wappalyzer
Data
Detects any site's tech, then sells the list.
$1M+
Stated · ARR, founder-stated
Closing the OSS core spawned free forks.
★ The edge: The free 2M-user extension crowdsources a live tech dataset rivals must crawl for — data as a byproduct.
Open →
Wash-Dry-Fold POS
SaaS
He ran laundromats, then built the POS he now sells
$1M+ ARR
Stated · seven-figure ARR (founder)
Software earns less than his own laundromats
★ The edge: He owns laundromats. The POS ran his own 3 stores for years before he sold it to operators who trust an owner's tool.
Open →
Yardbook
SaaS
Free software for 20,000 lawn crews. 7-person team.
$1M
Estimate · 2024 ARR - Latka estimate
Free model caps revenue: about $1M in 8 yrs.
★ The edge: Hands lawn crews a full ops suite free, then earns on payment fees, a paid tier, and sponsored listings.
Open →
Browserless
Dev
Headless browsers as an API, rented by the second.
$4M
Stated · ARR, no funding raised
Commodity infra; Google already cloned it.
★ The edge: Eight years answering Puppeteer bug threads and blogging made him the browser-infra name devs reach for first.
Open →
CoinTracking
SaaS
Built the crypto tax plumbing before the IRS ruled
2.2M+
Stated · active users
Churns hard in every crypto bear market
★ The edge: Every crypto disposal is taxable by law, so the report is mandatory - and CoinTracking owns the messy import plumbing.
Open →
flomo
SaaS
A note app that wins by doing deliberately less.
1M+ users
Stated · revenue never disclosed
⚠ Entry low
a note app clones in a weekend
a note app clones in a weekend
★ The edge: Cold-started on Product Thinking, the founder's paid newsletter — the audience existed before the product.
Open →
iClassPro
SaaS
The software a gymnastics-gym owner built for himself.
$5.7M+ ARR
Estimate · Latka est.
Crowded niche; Jackrabbit pioneered it.
★ The edge: A national-champion coach who owned a gym built the tool he needed, then won schools on trust and support — not ads.
Open →
ImportYeti
Data
Find any company's overseas suppliers — free.
2M+ users
Stated · free + paid
⚠ Control low
$0 raised · about $1M est
$0 raised · about $1M est
★ The edge: the data was free all along — he made it usable where rivals charged $125–899/mo.
Open →
Koinly
SaaS
Your crypto trades in, a ready-to-file tax report out.
2M+
Stated · users
Demand rises and falls with crypto prices.
★ The edge: 800+ exchange, wallet and chain integrations turn years of messy trades into ready-to-file forms for 20+ countries.
Open →
Pixieset
SaaS
Free gallery for photographers, a cut of every sale.
1 million+ photographers
Stated · revenue never disclosed
A gallery has near-zero switching cost.
★ The edge: Won on taste, not features: the free gallery looked better, so photographers switched and brought their clients.
Open →
PredictWind
SaaS
America's Cup weather tech, sold to every sailor.
1M+
Stated · users (Dec 2023)
Free rivals like Windy commoditize the data.
★ The edge: Licensed the exact weather models that won the America's Cup, then sold them to every cruiser for $29-499 a year.
Open →
PriceCharting
Data
Turns every eBay sale into the price of every game.
3.5M
Stated · monthly users
Its whole dataset rents eBay's sale feed.
★ The edge: 18 years of completed eBay sales, auto-graded into the one price dealers quote — a time-series rivals can't rewind.
Open →
Quiver Quantitative
Data
The tool that tracks Congress's stock trades.
$2M+ ARR
Stated · profitable · 750K users
The data is public — anyone can copy it.
★ The edge: The data is public; the product is the pipeline plus the brand. CNBC, Bloomberg and the FT cite them for free.
Open →
Ravelry
Community
Knitting's community — run profitably by about four.
9M+ members
Stated · revenue never disclosed
One niche · community-dependent
★ The edge: it earns from its own members (self-served ads) at about 3.5% — aligning beat taxing the crowd.
Open →
Shodan
Data
Google indexes web pages. Shodan indexes devices.
3M+
Stated · registered users
Key-person lean; Censys cloned it with VC.
★ The edge: A 15-year, continuously-crawled index of every service on the public internet — a dataset newcomers can't back-fill.
Open →
Skeb
Marketplace
Commission Japanese artists - no chat, no revisions
3.5M+
Stated · registered users
Thin take rate; niche tied to anime fandom
★ The edge: By banning revisions and client chat, it removes scope creep and harassment for artists, so more artists sign up.
Open →
Stora
SaaS
The operating system for staff-free self-storage.
$3M
Estimate · ARR (est.)
Small niche; Storable owns the incumbents.
★ The edge: He built it to run his own unstaffed storage site — then sold it to every operator chasing the same automation.
Open →
The StoryGraph
Community
The Goodreads escape hatch readers actually love.
5M+
Stated · user signups
Consumer freemium: most users never pay.
★ The edge: Bootstrapped and ad-free, it ships the mood, pacing, and privacy features Goodreads ignored for a decade.
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UDisc
SaaS
The scoreboard for 90% of disc golfers.
1.4M
Stated · yearly app users
Niche ceiling: about 1.4M players, $30/yr.
★ The edge: Gave scorekeeping away free for a decade; the course database it created is now a moat no rival can buy.
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World Anvil
SaaS
Build your fictional world — a wiki for writers & GMs.
3M+
Stated · users
⚠ Need niche
small TAM · free-heavy
small TAM · free-heavy
★ The edge: anyone can clone a wiki — the lock-in is years of your interlinked lore living inside it, plus a 3M community.
Open →