64 of 406 ideas

AI sitemap and wireframe tools crush web design delivery from 3-4 weeks down to 1 hour — and the client still pays $10K a site

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.

Open-source self-hosting as the top of the funnel, the cloud-hosted version as the paid tier — 21K GitHub stars carrying $9K MRR

Use AI to design funny apparel for specific dog breeds and sell it on Etsy via print on demand

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

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

Six years, 2M+ downloads and $1M+ in App Store revenue — from a developer whose 2026 strategy shifted from shipping many small apps to protecting one Apple account

A faceless compilation channel aimed at 3-5 year olds that stacks two proven viral concepts per video — one video alone paid $20,546

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 four-times-a-week paid tech briefing for people who don't want to live on Twitter — 350 subscribers paying $9/month, run by one writer with about $180 of monthly costs

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.

They didn't build a Shopify app — they bought a neglected, one-star-drifting one for ~2x revenue and ran it for a decade into a business worth millions.

A Japanese freelancer scratched his own invoicing itch in PHP, gave it away free until 10,000 people used it, then switched on ¥980–¥3,000 plans and collected ¥100K–¥120K a month for years before selling the whole thing

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.

An AI resume builder and bullet-by-bullet review tool, copied from an existing revenue-proven app, built solo in 23 days and left on autopilot

15,000 subscribers, about $86,000 in five months — because he sells his own course and community rather than renting the list to advertisers

The honest version of the Etsy digital products story: $11,945 of revenue and $4,282 of actual profit in year one, for 15-20 hours a month — which in the Philippines is more than the minimum wage

Three deliberately boring directories in niches Google Maps handles badly, monetised with display ads: 80,000-100,000 monthly visitors and $2,300-$3,000 a month for three years, untouched for the last six months.

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

A public grid of 1,000 squares worth $1,000 each, filled in as he earns — which turned a personal goal into a distribution engine other people copy

Free website, $199/month forever: an agency owner turned one-off web projects into 64 recurring subscribers and $10K MRR in 3.5 months — entirely on Meta ads, zero cold calls

Find a topic people read about constantly and nobody makes videos about — gas prices, factory shutdowns, crop failures — and turn the news cycle into an AdSense channel with a four-step Claude prompt.

Analytics and client reporting built for email/SMS marketing agencies instead of the brands they serve — one sale onboards 30 brands at once

He bought a dying five-year-old SEO tool for $30,000 doing $1,500/month, spent two months fixing retention instead of marketing, and took it to $30,000/month with two contractors and no employees

She built over 100 digital products, funnels and lead magnets, drowned in it, then hit $33,108 a month by running exactly one channel, one freebie and one checkout page

A non-developer built a SaaS in Bubble, took it to $10-11K MRR in his first year, tried to sell it to private equity for $112K — and concluded that the acquisition failed partly because his growth came from twelve burner TikTok accounts instead of an ad account.

$50,000 in a year from Pinterest traffic into digital products and affiliate links, with no daily posting and no camera — then the system itself became the product.

Don't invent a product, find one the market is already paying for and build your version of it with AI — $500K in year one from a single digital product, and over $32M in sales since

An API that turns any URL into a screenshot — one boring feature, 280 paying companies, about $12K a month

Validate a topic by other people's sales rank, write a 10,000-word book that solves one problem, list it where buyers already are — $2.2M in royalties and a first account sold for $820,000.

Fifteen years of boring healthcare directories monetised by one sponsored hotline number — about $350K a year after tax, split three ways, with no employees

A Chrome extension clones your app's front end into a clickable demo you can embed anywhere — $250K MRR in two and a half years by ranking for every competitor's name.

A form builder that gives away 99% of its features with no limits, then converts about 3% of 140,000 users at $29/month — $70K MRR on a team of four, built by out-positioning Google Forms and Typeform instead of out-spending them

He paid an agency $1,000 and waited six weeks for a spreadsheet, then built the same thing with AI in a week — it grossed $120K, then he stopped touching it and the exit price collapsed.

A single-platform social tool that hit $1K MRR in two weeks and $300K/month by giving a quarter of its profits to one creator as head of distribution

He found a channel doing 3-4M views a month, niched down from 'vintage everything' to 'vintage vehicles', hired the competitor's own thumbnail designer, and did $60K+ in AdSense in under a year.

A $100/month waitlist-and-reservations app for restaurants that undercuts OpenTable and Yelp by refusing to charge cover fees

A local-only desktop app that turns a Korean school counsellor's three hours of monthly paperwork into ten minutes — ₩20M a month from under 100 schools, built solo with Replit and Claude Code

A corporate data analyst built the tool his employer refused to build, sold it back to his employer as customer number one, and exited at nearly 10× revenue five years later

Construction management software for residential builders — $2M ARR and $40K a month of profit, with 95% of revenue traced back to long-tail blog posts

A Canadian B2B lead-gen agency that grows ~40% a year on one monthly video email to 5,000 people — and keeps the average client for five years and nine months

She turned KSh 200 into KSh 1.5M in eighteen months by buying thrifted dresses at KSh 50 and selling them on Facebook at KSh 1,000 — then used the whole pile as launch capital for her own made-in-Kenya label, and lost every shilling of it on the first production run

A personality-quiz aggregator built by someone who had never made a website — under ₩3 billion in cumulative revenue from ad units on JSON files served as static pages

Software for nurseries and preschools started by a 19-year-old in his mother's daycare — over 20 million złoty in revenue, half a million parents, and one in three Polish parents with a child in private childcare

Two lazy engineers automated the part of GitHub that GitHub wouldn't build, gave it free to open source, and now bill 150 engineering teams ~$750/month each — $110K/month, bootstrapped

A second-time French founder walked into 20 factories, got 19 nos, and turned the one yes into eight separate software companies doing €2.2M a year across 180 factory sites — sold almost entirely through 100 tiny consultancies on commission

Upload a podcast episode, get the show notes, newsletter and social posts back — a two-week build that reached $16K MRR after four earlier products went nowhere

€7,500 of ads bought 43 leads, 12 demos and 6 clients in four months — roughly €60K of revenue at a 50% close rate — run by one founder and two part-time employees who each orchestrate five to ten AI agents.

A code review tool bolted onto version control systems, sold to enterprises with no salespeople — millions in revenue at roughly $1M per employee, and a founder who still woke at 3am panicking about payroll because none of it was recurring

A Japanese restaurant reservation platform that wins deals by telling restaurants their current vendor is holding their customer data hostage — and lets anyone export everything, any time, with no contract lock

Take a tool that agencies sell for ¥100K a month, sell it to sole traders for ¥5K, then pay your three free beta users ¥5,000 a head to sell it for you — the exact sequence that took a Japanese solo dev to ¥200K/month

He bought a neglected WordPress classifieds plugin off Flippa for $1,000, added a shopping cart, a support forum and higher prices — and grew it from $300 a month to $2,000, then repeated the trick for $1,400

Before it had a name, a slide deck, an employee or a server, 30-40 people had already agreed to pay $50/month for it — and annual prepay later gave it 3x monthly cash flow and what the founder calls an infinite marketing budget