34 of 406 ideas

A solo-built real-time bus/train tracker covering 160+ cities, downloaded 5.2M times, grown to $30K/mo in subscriptions on free App Store keyword optimization (ASO) alone.

Stephen has shipped hit app after hit app, and he's publishing his four-step idea-validation framework. Posted is doing $90K/mo right now; his last one, PuffCount, hit $44K/mo before he sold it. The core of the method: marketing is 90% of the outcome.

George can't code, so he used the no-code platform Rork to build an AI wrestling coach: upload your match video, the AI tells you what you did right and wrong, then hands you targeted drills. $10/mo, $38K actually collected in a single month (~$20K MRR). The core play: take “AI combat coach” and cut it down to the ultra-vertical wrestling niche, then snowball acquisition through a matrix of wrestling influencers.

An “emergency button” app built for panic attacks and anxiety

An AI fitness app that builds custom smart training plans for gym strength training

Get the waitlist page, analytics, feedback board, email sequence, store listing, and landing page all in place before launch, and soak up every drop of Apple's new-app traffic boost

An indie hacker doing $77K/mo across 35 products, with a single core methodology — never stop shipping. His latest: a Mac desktop app that watches your posture through the webcam

Single-feature niche apps that identify and price anything from one photo — one team built a whole portfolio across coins, rocks, antiques, and insects, with the top app doing $500K/mo

A former game artist who never writes a line of code himself is building a Unity card roguelike entirely through Claude Code, sustained for 8 months by a workflow of "search-engine-style prompting + subagent review"

A content creator vibe-coded an app for himself while ill: continuous glucose monitor and Apple Health data all stored locally, with a single API letting AI analyze his vertigo triggers and give advice in the moment

A 2020 pixel-shooter mobile game that earned $119K over five years by porting to every platform

Rebuilt the played-out affirmation app specifically for Nordics living through four-hour winter daylight, then hit a few thousand dollars a month with onboarding conversion + TikTok ads

Turn Bible GPT from a Q&A tool into emotional companionship that asks you questions back, aimed at the audience technology reaches last

Log every little thing your girlfriend says, let AI remind you it's time for a date night or time to send flowers, and order it in one tap

Upload a PDF, lecture deck or YouTube video and it auto-generates practice questions, wrapped in a Duolingo-style growth tree that scales on retention instead of a hard paywall

A weekend-built flashcard app for one obscure professional certification exam: $31K revenue in 8 months on $140 of total costs

A first-time solo dev's brick-breaker with a Diablo-style loot twist cleared roughly £11K in its first 30 days — almost entirely from one Reddit post and organic installs.

A solo dev built a digital wardrobe app for his wife; it made $8,354 in 2025 while his two other apps made $472 combined — the honest arithmetic of shipping small apps.

Under 5,000 downloads produced $65,000 — because the app wasn't a workout app, it was one specific influencer's workout app, sold to the audience that already pays her.

A paid translation app competing head-on with free Google Translate — and clearing $50K a month by being better at the parts Google stopped caring about.

A yoga sequencing app for teachers that collected $117K on its first day by selling lifetime deals before the product was finished.

A day counter with motivational reminders reportedly pulled $200K in a single month — and the whole feature set gets rebuilt on camera from a phone, no code written

A screen-time blocker that makes you pray before Instagram opens — one gimmick feature, one religious community, $40K a month.

A sub-niche of the accounting category where several apps do one thing — photograph a receipt — and the App Store estimates put three of them at $60K, $60K and $80K a month.

A beautiful notes app built for the founder himself, run at $20K MRR by a team of four — and funded by a $1M round raised from its own customers with a promise of dividends instead of an exit

A dating app that changed nothing about dating apps except who it's for — and does $400K a month in the most 'saturated' category on the App Store.