Solo devs, $1M+ months.

A database of overseas AI-app successes, broken down into numbers and repeatable playbooks you can compare across cases — every one verified with primary sources.

Cases: 54
Top monthly revenue: $4.2M/mo
Fastest growth: $300k in 2 mo

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Cal AIHealth & Fitness

Built in High School at 17 — How Cal AI’s “Just Snap Your Food” Calorie Tracker Hit ~$50M ARR in 18 Months and Sold to MyFitnessPal

A photo calorie tracker built by Zach Yadegari and a teenage founding team: snap your meal and AI estimates the calories. Bootstrapped to ~$50M ARR and 15M downloads in 18 months, it was acquired by MyFitnessPal in 2025.

TikTokShort-form videoInfluencer marketingInstagramOnboarding optimization

Monthly (est.)

$4.2M/mo

18 months

Cross-case “growth playbook” report (coming soon)

We're building a paid report that aggregates every case in this database: which acquisition tactics worked, in which categories, and how well — insights you can't see from a single story. Get notified first when it launches.

Solo devs, $1M+ months.

Built in High School at 17 — How Cal AI’s “Just Snap Your Food” Calorie Tracker Hit ~$50M ARR in 18 Months and Sold to MyFitnessPal

$1M/month and 90%+ margins on zero ad spend — How Lithuanian designer Erikas’s Shopify app suite Kaching went 10× from $100k to $1M MRR in a year

Zero Employees, One Human, a $250M Valuation — How Ben Cera’s ‘AI That Runs Whole Companies,’ Polsia, Even Automated Its Own $30M Raise

“Never Take Notes Again” — How Coconote Hit $6.7M ARR in 18 Months With Almost No Ad Spend

“Getting Roasted by an AI” Went Viral — How Pingo AI Hit $500K MRR in 14 Months on 200M TikTok Views

The Opposite of Cheap-and-Wide — How Poppy AI Bootstrapped to a $500K Month in 11 Months on $300–800/Year Pricing

After 18 Months of Failure He Borrowed $100K and Bet It All — How the “Snap a Photo, Type a Prompt” AI Editor Halo AI Hit $300K/mo in 45 Days

Solo, Zero Funding — How Maor Shlomo’s AI App Builder “Base44” Sold to Wix for $80M Just 6 Months After Founding

Audience First, Product Second — How a 4.5M-Follower Creator Used AI (Without Writing a Line of Code) to Take Manifesting App Stella to ~$300K MRR in About Two Months

Don’t Build It, Buy It for $1 — How Marketer Ricardo Acquired a Stalled AI Headshot App (BetterPic) and Grew It to ~$270K/mo in 18 Months via SEO & Affiliates

Sprout, the “Tinder for jobs” built by a non-engineer in college — betting on distribution over building to reach $250K MRR in 8 months

Built by Three Teens in ~10 Days — How QUITTR, a “Quit Porn” Digital-Wellness App, Hit $250K MRR in 4 Months With Zero Outside Funding

No Virality, No Ads: How Australia’s Mike Hill Stacked Five “Boring” B2B SaaS Products to $200K MRR With One Repeatable Playbook

Built Solo by an Ex-Amazon Engineer — How nomadtable Turned Solo-Travel Loneliness Into 2M Users and $2M ARR in Two Years

Open Source as the Funnel — How Solo-Built Postiz 7x’d to $145K MRR in 4 Months by Selling to AI Agents

$125K MRR, Solo and Unfunded — How Zigpoll Broke Out of a Two-Year Plateau by Doubling Down on the Right Segment

From ~10 Failed Apps to GlowUp — How a 24-Year-Old Solo Canadian Builder Used $0 in TikTok Ad Spend to Reach $800K in a Year and $1.2M ARR

AI Flashcard App Jungle — From a 21-Hour First Build to ~$1.1M ARR by Zeroing In on Medical-Student Influencers

A Travel Creator × a Stanford Dev — How TripBFF Solved Solo-Travel Loneliness and Reached 1M+ Downloads and $1M+ ARR (~$83K/mo) With Zero Ad Spend and 30+ UGC Accounts

“Zero for the First Six Months” — How a 20-Year-Old and His Cofounder Compounded Senja, a Testimonial Tool, to $1M ARR With Two People and No Funding

Built in a Day — How Tony Dinh’s “Better UI for ChatGPT” TypingMind Reached $1M Lifetime Revenue in 20 Months by Building in Public

A No-Code Student Built a Peptide Tracker in 2 Weeks and Hit $125K in 80 Days

Apple Deleted His ~$33K-MRR App Business Overnight — How Viktor Seraleev Survived an 8-Month Fight and Rebuilt from Zero into a 30+ App Portfolio Doing ~$60K/Month

Arrived in the US with $100 — How a 22-Year-Old Built an App That Kills “Fear of the Wrong Reply” on GPT-4 Vision’s Launch Day and Hit $60K/Month

FaceKit, the face-rating app built by a 19-year-old — how ‘40 AI-generated influencers’ drove 100M views a month and $100k in 2 months with zero ad spend

A 25-year-old quit a $90k job and built ReelFarm solo — how a TikTok auto-posting SaaS hit $100k in 100 days and $200k in 163 days

"I Didn't Write a Single Line of Code" — A Former Screenwriter Built a 100,000-Line AI Screenwriting Tool With Claude Code Alone, Hitting $40K+ MRR in 8 Months

Two Exits Without Writing a Line of Code — How Non-Engineer Steven Cravotta Grew Quit-Vaping App “Puff Count” to $40K MRR and Sold It

The Bank Only Gave Him PDFs — So a Hong Kong Solo Dev Turned That Annoyance Into a One-Page Tool Doing $40K/Month With Zero Ads, One Day a Week

12 Real Events Booked Before a Line of Code — Disposable-Camera App Once Hit $20K/mo in 83 Days, ~$33K/mo by Month 5

Built in a Weekend at 18 — How SimpleClaw Turned the Viral Open-Source AI Agent “OpenClaw” into a One-Click Deploy and Hit $30K Verified MRR in Two Weeks

Built by a Non-Coder with Cursor and Claude Code — How Profit AI Turned a Client Spreadsheet into a $30K-MRR Shopify App in 5 Months

$30K MRR in 4 Months, $0 on Ads — How Leadmore AI Sold a Reddit Tool *On* Reddit and Proved ‘Audience First, Product Second’

45 Apps in a Year, Then Snag — How a 20-Year-Old NYU Student Turned a “Free Stuff Near You” App into $30K/Month in Under 4 Months

Validated With a Fake Demo Before Writing Code — How Pushscroll’s ‘Do Push-ups to Unlock Social Media’ App Hit $30K/Month and 300K Downloads in 4 Months

A Non-Coder Amazon Seller Built His Own Tool in 48 Hours with Cursor, Then Traded Equity for Access to the Audience of a Coaching Program He’d Already Bought Into — Launch Fast / Hasaam Bhatti

Born at a Rainy Bus Stop — How a Self-Taught Scottish Designer Grew Momego to 5.2M Installs and $30K/Month on Localized ASO Alone

Built Nights & Weekends by a Meta AI Engineer — How Live Tourney Turned the Boring Niche of Golf-Tournament Software Into $30K+/Month, and Made Him Quit Big Tech

The Fourth Try After Three Failures — How Daniel Nguyen's BoltAI Turned “the Official ChatGPT UI Is Annoying” Into a Weekend MVP, a Pieter Levels Retweet, and a $30K/Month Portfolio

How a Solo Dev Won in the Red-Ocean Habit-Tracker Market — HabitKit Hit ~$40K/mo and $600K+/yr with One ‘GitHub-Grid’ Visual and ASO

A 21-Year-Old Student Turned His Own Guitar-Tone Frustration Into an App — ToneAdapt Hit $25K/Month in 5 Months on Zero Ad Spend and 100K Users

A Weekend Timer That Makes $25K/Month — How Lukas Hermann Compounded Stagetimer Over Five Years with a Dead-Simple Niche and Documentation-Led SEO

A Non-Coder, 18 — How Wrestle AI Turned a No-Code Build Into $131,863 in Six Months

The Ex-Optician Who Learned to Code From a 15-Hour YouTube Course — How a “Never Reinvent It, Just Make It 1% Better” Clone Strategy Took StoryShort to $20K/mo (and a $35K/mo Portfolio)

Built in 3 Days by a Non-Technical, Non-Native Mexican Founder — How Prayer Lock (“Pray to Unlock Your Apps”) Hit $20K/Month in 6 Months on Pure UGC Volume

First to Market, 3 Days After ChatGPT Launched — How Superpower ChatGPT Grew Into a 400K-User Extension and a 350K-Subscriber Newsletter ($20–30K/mo)

ScreenshotOne — How an ex-engineer’s “boring” URL-to-image API compounded to ~$200K–$300K ARR in 3 years on build-in-public and SEO alone

The Vietnamese Solo Dev Who Quit His Job to Build Feynman AI — Growing a Study App to 370K Users and ~$19K/mo with No Ad Budget, ‘Volume over Virality’ TikTok, and One Rename

He Turned His Own Agency's 7-Year Problem Into a Product — How Ivan Nedelkovski's Upwork AI Agent Lancer Reached $19K+ MRR

Zero Code, Two Track Athletes — How 3AK Was Built in Rork Without Writing a Line, Turning a 150K Following into $10K in Month One and ~$17K MRR (RevenueCat-Verified) in Two Months

A Designer Quit a $200K Job to Build “Cat on Chair” — How a Focus Timer Where a Hand-Drawn Cat Just Sits Beside You Hit ~$18K/mo in a Red Ocean in 10 Months

Born as a Side Feature of a Notion Blog Tool — How Two Brothers in India Built SiteGPT in Two Weeks, Survived a Self-Imposed Signup Freeze, and Climbed Back to $13K/Month

Floga: Built a 5-Year Audience With Physical Yoga Decks, Then Sold the App *Before* Building It — a Lifetime Pre-Sale That Did $120K in 24 Hours Outside the App Stores

Built in 10 Days the Day After Getting Fired — How Designer Fernando Pessagno Made Taste His Moat and Turned a Portfolio of ‘Boring’ Design Tools Into $15K/Month on 4-Hour Days

Cross-case “growth playbook” report (coming soon)

$30K MRR in 4 Months, $0 on Ads — How Leadmore AI Sold a Reddit Tool On Reddit and Proved ‘Audience First, Product Second’

Floga: Built a 5-Year Audience With Physical Yoga Decks, Then Sold the App Before Building It — a Lifetime Pre-Sale That Did $120K in 24 Hours Outside the App Stores