How to Build an App with Claude Code · Part 6 of 6All parts
- The seriesI Built an iPhone App in 5 Weeks of Evenings. I Don't Know How to Code.
- Part 1The AI Built the App I Actually Pictured. The Trick Was One Plain-English File.
- Part 2Turn One AI Chat Into a Tireless Build Team
- Part 3I Built a Hard App Feature Without Code. I Just Described It.
- Part 4My App Went Live Four Days After I Hit Submit. Apple Rejected It Twice in Between.
- Part 5I Built a Zero-Budget Marketing Machine for My App: 820+ Hooks, 122 Videos, One Rule
- Part 6What It Really Takes to Build an App With AI. I Kept Score.You are here
Key takeaways
- Big features took three to five rounds, every time. Describe, build, test on a real phone, go again. That's not failure, that's the method.
- The AI saying a feature is done doesn't make it a working feature. Test the behavior on a real device, not the checkmark.
- AI brings horsepower, not taste. It can build whatever you describe, but it can't decide what deserves to exist. That call is yours, forever.
- The self-graded quality scores went from 7 out of 14 to 13 out of 14 in three weeks, including a hard week of 8s. The AI didn't get smarter. The system did.
- A design audit caught a pile of stray hard-coded values the AI itself had let creep in, then fixed the lot in one sweep. It's the mess and the mop.
- The real requirement list: product judgment, a real device you'll actually test on, and a clear description of what you want. Coding isn't on it.
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Questions people ask
What do you actually need to build an app with AI as a non-coder?
Three things: product judgment (knowing what "good" feels like), a real device and the patience to test on it, and the ability to describe what you want in plain words. That's the whole list. You don't need to code, raise money, or hire anyone. I shipped with exactly those three.
What can AI not do when you build an app with it?
Taste. AI builds whatever you describe, but it can't tell you whether the idea deserved to exist or whether the result is any good. I killed a dated design, cut a free trial that was hurting me, and overruled tools that fought my brand voice. None of that was code, and all of it decided whether the app was good.
How many tries does an AI-built feature take before it works?
Big features took me three to five rounds, every single time. Describe it, watch it get built, test it on a real phone, report what's broken, go again. That's not failure, that's the process. Anyone promising one-shot magic hasn't shipped anything real. Budget the rounds up front and you'll actually finish.
Is AI-generated code good enough for a real App Store app?
Yes. CloseUp is live in the App Store with over 60,000 lines of Swift I never wrote. But "good enough" comes from the system around the AI, not from one magic prompt. The AI saying it's done is not a working feature, so you test everything on a real device and correct it until it's right.
Does AI-built app quality actually improve over time?
Measurably, yes, if you build a system around it. I had the AI grade its own work out of 14 after every big feature. Over three weeks the scores went from 7 at the start to 13 at the end, with a hard week of 8s in the middle. The AI didn't get smarter. My instructions, memory, and checklists did.
What's the honest first step to building an app with AI?
Pick the one thing your app must do and describe it in plain English, exactly like you'd explain it to a smart friend. Don't start with settings or login screens. Start with the thing that makes your app special, review the plan the AI gives back, then test and iterate. That's the whole method.
Written by Ronnie Nijmeh
Ronnie spent 18 years building a SaaS with a team of 20 that served over 650,000 customers, generated over $14M in sales, and sent over 550M emails. Now he's solo, solving real business bottlenecks and turning them into working AI skills, workflows, and automations. He teaches all of it, with direct access to him, inside the Solo Creators AI Studio Skool community. See what he's built →
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Case study · The full series
I Built an iPhone App in 5 Weeks of Evenings. I Don't Know How to Code.
How I shipped a real App Store app in five weeks of evenings, writing zero code.
Case study · Part 1 of 6
The AI Built the App I Actually Pictured. The Trick Was One Plain-English File.
The one plain-English file that made AI build the right app instead of a gorgeous mess.
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