How a Simple Cat App Makes $18K/Month

Most successful apps don't win on features. They win on personality. Ryan Yao figured that out early — and it made him $18,000 a month.

Ryan is a former product designer who spent years working at tech startups, doing solid work, but feeling like he was leaving something on the table. He had the design eye. He had the product instincts. What he didn't have was the ability to code. So his ideas stayed ideas — until AI coding tools made iOS development accessible enough that a non-technical founder could actually ship something real. About a year ago, that door opened. Ryan walked through it, quit his $200,000 job, and got to work.

The result is Cat on Chair — a Pomodoro timer for cat lovers, built with AI, launched on August 27, 2025, and now generating over $18,000 per month with more than 127,000 downloads.

Step 1: Find a Niche You Actually Care About

The idea: Cat on Chair is deceptively simple. It's a productivity timer — the kind that breaks your work into focused sessions and short breaks. But instead of a cold, minimal UI counting down in silence, you get a cat. Start a focus session and a cat hops up on a chair to keep you company. Finish the session and the cat leaves you a gift. Fail to finish and it leaves you... something less pleasant. The whole thing has the warm, handcrafted feel of a cozy game.

Why it works: Ryan wasn't solving a problem nobody had. Pomodoro timers are everywhere. But he picked a niche he genuinely understood — cat lovers who want their productivity tools to feel less like a dentist's waiting room. That specificity is the whole game. A generic timer competes with hundreds of apps. A Pomodoro timer that feels like Animal Crossing for cat people? That's a category of one.

The numbers: In roughly nine months, Cat on Chair has made nearly $80,000 in total revenue. In the last 30 days alone, it pulled in over $18,000 with 24,400 downloads. At its peak, it hit #3 in free productivity apps on the Taiwan App Store. The app is free to download, with pro features available for $19.99/year or a $29.99 lifetime purchase — and Ryan says most of his revenue comes from the lifetime option.

Step 2: Study the Competition, Then Remix It

The research process: Before building, Ryan dug into the App Store and social media to understand what users actually wanted from productivity apps — and what frustrated them. He read reviews. He looked at what people were sharing, screenshotting, recommending to friends. This isn't glamorous work, but it tells you exactly where the gaps are.

The remix approach: Ryan's advice isn't to copy your competitors — it's to take what's working across multiple apps and combine it in a way nobody else has. He pulled the focus session structure from the Pomodoro world and layered on the reward mechanics and customization loop he loved from games like Animal Crossing. The goal was to answer a simple question: what makes users come back? In games, the answer is usually progress, collection, and personalization. He just applied those same principles to a productivity context.

Looking outside your category: One of the sharpest pieces of advice Ryan gives is to look at games for inspiration on user motivation and retention, not just other apps in your category. Games have spent decades figuring out how to keep people engaged. The mechanics are right there — streaks, rewards, unlockables, collectibles — and most productivity apps haven't touched them yet. That gap is opportunity.

Listening to users: Once the app launched, Ryan kept iterating based on feedback. One small but telling example: users kept tapping the cat on screen just to see what would happen. Ryan noticed this and added a 'meow' animation triggered by the tap. Tiny feature. Huge personality. That kind of detail is what makes an app feel alive versus functional.

Step 3: Build a Visual Style That Stops the Scroll

Why visual identity matters: In an App Store full of clean, minimal interfaces, a distinct visual style is one of the fastest ways to stand out. Ryan had an advantage here — his girlfriend is an illustrator, and she created the hand-drawn art that gives Cat on Chair its signature warmth. The cats look like they belong in a children's book. That aesthetic is not replicable by someone spinning up a generic app overnight.

If you don't have an illustrator: Ryan acknowledges not everyone has a built-in creative collaborator. His suggestion is to use AI to develop a visual direction — generate a bunch of styles, find one that feels genuinely distinct, and commit to it fully. The key word is *distinct*. Not just "pretty" or "clean" — something that someone could see in a screenshot and immediately recognize as yours.

The handcrafted advantage: There's something specific about Cat on Chair's look and feel that signals care. Users can tell when something was assembled quickly from templates versus when someone actually thought about every pixel. That perceived quality builds trust before a user has even tried the app.

How It Went Viral (Twice)

Ryan didn't run paid ads. He didn't have a big audience. The app grew almost entirely through organic sharing — and it happened in waves.

The first wave started on Red Notes, a Chinese social platform where Ryan had initially recruited beta testers. Small posts about the app started circulating. Nothing explosive, but enough to build early momentum and surface the bugs that needed fixing before a wider launch.

The real explosion came from Instagram. Influencers started including Cat on Chair in their "apps I'm loving right now" posts — the kind of roundup content that performs well and reaches people who are actively looking for recommendations. One of those posts crossed 2 million views. That's the kind of exposure you can't buy, and it's the kind that happens when your app is genuinely interesting enough to share.

Then the second wave hit. Someone in Taiwan discovered the app and posted about it on Threads. It went viral all over again in that market — which is likely how Cat on Chair cracked the top 3 on the Taiwan App Store. Overnight, downloads and revenue roughly doubled. No ad spend. No PR campaign. Just a product compelling enough that people wanted to tell their friends about it.

Ryan launched in late August 2025, got 3,000 downloads in the first week, and hit his stride from there. He's honest that the app wasn't fully stable until December 2025 or January 2026 — there were plenty of bugs in the early months — but the core experience was strong enough that users stuck around anyway.

The Takeaway

Ryan's story is a clean case study in what's actually possible right now. A designer with no coding background, a girlfriend with illustration skills, an AI coding tool, and a genuinely specific idea — that's the whole stack. No VC funding. No engineering team. No paid marketing.

The framework he used isn't complicated: find a category you care about, study what users love and hate about existing options, remix the best parts into something with a strong visual identity. The hard part isn't the framework. The hard part is committing to a niche specific enough to feel weird, and then executing with enough care that people want to share it.

Cat on Chair is weird in exactly the right way. A Pomodoro timer where a cat judges your focus sessions is not a billion-dollar market. But it doesn't need to be. At $18,000 a month and growing, it's already changed Ryan's life — and he built the whole thing himself. 🐱