Find apps people hate but pay for. Rebuild them with AI.
Based on Greg Isenberg's viral thread - with my own twist.
Complete walkthrough of the strategy, tools, and real examples
From $500K tech barrier to $20 idea barrier
THEN (2021)
$500,000
Cost to ship an MVP. Required a dev team and VC funding.
NOW (2026)
$20
Cost to ship an MVP with Claude Code. The new moat is Idea + Marketing.
You don't need to invent new behaviors. You just need to fix broken experiences.
High downloads + Angry reviews + Users forced to pay = Gold

The App Store and Google Play are stuffed with predatory apps charging subscriptions for basic functionality. They have millions of downloads, terrible reviews, and they're making serious money.
Example: I needed an app to copy a URL from my phone to my Android TV. Every remote control app follows the same gross model: download, then $3-5/month to use basic features. Intrusive ads. One-star reviews everywhere.
One of these apps has 50 million downloads and 650,000 reviews. Some are making $100,000+ per month.
What I Did Out of Spite
I refused to pay. Opened Claude Code, gave it screenshots of these apps, and said "build me this."
15 minutes later I had a working app. Another 15 minutes to get it through Xcode and onto my phone via TestFlight. Half an hour total. That's the opportunity.
Find apps making money that people despise

The gold standard. Most accurate data. Used by enterprises. Not cheap (hundreds/month).
Sensor TowerFree tool showing estimated revenue and downloads. Data isn't as accurate but points you in the right direction.
AppArcAlso free. Similar functionality. Good for validation and seeing download trends.
Fox DataMy recommendation: Start with free tools. You don't need exact numbers. You need direction, not precision. Find niches where apps are making money but users hate them.
Read the 1-star reviews - they're your product roadmap
Use Claude to help analyze reviews
Throw all the app descriptions and reviews from competitors into Claude and ask: "What do people hate most? What's missing? How could this be 10x better?"
Bottom line: You don't need to rebuild the whole app. You just need to fix the one thing users hate most.
Boring categories print cash

Don't build the next Instagram. Don't chase AI photo generators. Build boring shit.
Greg's example: Alarmy - a loud alarm clock app. That's it. It's louder than the default. Half a million downloads per month. Half a million dollars per month.
Focus on Utilities, Productivity, Professional Tools
Things people need daily but aren't sexy
Avoid Platform Risk
Don't build on APIs you don't control (social media, etc.)
Copy What Works and Make It 10x Better
You're not inventing anything. You're executing better on proven demand.
We're not trying to build billion-dollar unicorns
We're trying to build something that generates $10,000-50,000/month. That's life-changing money for an individual. And that's revenue big companies won't bother competing for.
Planning first, then let AI do the heavy lifting
Before opening Claude Code, plan first:
Talk to Claude or ChatGPT and say: "I'm rebuilding this app. Here are screenshots. Here are competitor descriptions. Here are the reviews showing what people hate. I want to build for iPhone/Android. This is my first app - what do I need to know?"
It'll help you work out the plan and tell you what frameworks and languages you need.
The best option. Give it screenshots and descriptions. It builds everything. $20-200/month depending on usage.
Get Claude CodeJust added app publishing. Build your app, click publish - it handles packaging and TestFlight integration.
Try ManusDeveloper account costs: Apple is $99/year. Google Play is $25 one-time. You can test with free accounts initially via TestFlight.
Don't be predatory like the competition
Most predatory apps charge subscriptions for features with zero ongoing cost. A TV remote doesn't need monthly payments - there's no server, no API calls.
$5 lifetime instead of $3/month. People hate subscriptions.
App is free, "support my work" option for those who want to contribute.
Basic free, premium one-time for advanced features. Keep it reasonable.
Only charge subscriptions if you have actual ongoing costs (like AI API calls). If you don't have ongoing costs, a one-time fee is the ethical choice.
Building is now easy. Marketing is the differentiator.
This is too big to cover in one guide. Building is the easy part now - marketing is where you'll spend most of your effort.
I've got a free 10-week course covering: finding your niche, building in public, getting your first customers, bootstrapping sales, and scaling.
14-slide visual guide to the $10M playbook
Complete transcript from the live stream
A guide, which has become very popular on Twitter, this is a guide from Greg Eisenberg. If you don't know him, make sure you're following him. He's primarily on Twitter and he's talking about finding applications, apps on the telephone - talking about iPhone apps, talking about Google apps - that people are buying. People are spending good money on, but they hate.
Then we're gonna use something like Claude Code or some other vibe coding tool to very quickly replicate the functionality of the application and launch a better version, a cheaper version, a more advanced version, whatever it is. We are going to go into the market and we are going to blow people out of the water using vibe coding tools on applications that make money, but are disliked.
We have had an app gold rush before - happened maybe 10 years ago when the iTunes store, Google Play Store. That was the place where you could make a billion dollars. You could go on there and you could build an application like Instagram.
However, prior to a couple of months ago, this was tricky. You could have an idea. Yeah, absolutely. But you would have to have either the money to hire a technical team, you'd have to have the technical know-how to build applications, or you'd have to find a CTO or somebody who had those skills and then you would split the company.
That technical block has been eradicated by Claude Code. We can now give an application, we can give screenshots of an application to Claude Code and say, Hey, can you build this for me? And Claude Code will do it. You can rebuild any application - the interface, the functionality of it - for $20 a month, for $100 a month if you want a better version.
Last week I was trying to copy a URL from my telephone over to my Android TV. I needed to add some plugin on my Android TV and I did not want to have to type using my remote control a big long URL that had an API key - a massive amount of fuss.
I went on the app store - the Google version - and the app store was full of hundreds of applications to talk to your TV, use it as a remote. They're complete and utter dog shit. Hundreds of these applications follow the same predatory practice.
Reviews: 3.9, probably fake five stars. "Works for my TV perfectly, no complaints, but the ads need to go." "The phone got a virus because there's no warning, they just pop up." "I accidentally clicked it and now I have a virus." "It works but pops up full screen ads while I'm scrolling." "It's $5 a month."
This has 50 million downloads and 650,000 reviews. I, out of spite, refused to pay. So I stopped what I was doing and went to Claude Code and said, build me an application that does this. And I gave it screenshots. 15 minutes it took, and it built me an application. I got it on my telephone via TestFlight, and then was able to use it on my TV. Took about half an hour all the way through.
According to Greg, we're looking for something that has a monthly revenue of $50,000 to $200,000 roughly with an app store rating of less than four stars. Greg Eisenberg talks about Sensor Tower - this is the ultimate version. It's not cheap - we're talking hundreds of dollars a month.
There are a few others. AppArc is free. Fox Data is also free. These will give you some information - whether or not it's going to be as accurate as Sensor Tower, we know it's not, but it will point you in the right direction.
Don't go for the flashy things. Don't try to build the next Instagram. Don't try to build the next TikTok. Don't try to build an AI application necessarily. Do boring shit.
Greg gives an amazing example of a person who created an application called Alarmy, which is a loud alarm clock. That's it. That is the unique selling point. It's louder than the default app. They have half a million downloads and make half a million dollars a month.
So don't overthink this. Don't think you need to create the next billion dollar app. You need to create something people will find useful.
We are not trying to build a billion dollar app. That's a different game. Instead, we're gonna build something that puts food on our table and allows us to live a very good life. If we can build something that gives us a few thousand dollars, $10,000 a month, that's life-changing for most people.
This is not about technical skill anymore. The game has shifted. It's about having an idea and then being able to market it very well.
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