TL;DR
App building today is describing the app you want in plain English, letting Claude Code write it, previewing it live in Expo, and submitting it to the stores. It is less about knowing how to code and more about knowing what to build.
Hi, I'm David. Building an app used to mean years of learning to code. That has changed. Today you describe the app you want in plain English, an AI coder like Claude Code writes it for you, and you preview it live on your phone with Expo. Your whole job when you start is to learn what makes a small, useful app and how to get it through the stores. The stores handle finding you users the same way a busy street brings foot traffic to a shop.
The simple loop behind every app
Every app follows the same loop: describe a feature, let the AI build it, run it on your phone, and fix what feels off. That is it. The skill is not memorizing syntax, it is describing clearly and testing constantly. The more you ship, the faster you learn which features matter and which ones just add weight.
- An idea small enough to build in a week
- A real person who would open it every day
- A way to charge for it, usually a small monthly subscription
Why the App Store and Google Play are a great starting point
Apple has 2.5 billion active devices and 850 million people visit the App Store every week. Google Play reaches over 2 billion Android devices. That is a built-in audience already searching for apps like yours. You do not have to build traffic from scratch. You build something useful, list it well, and the stores put it in front of people looking for it.
What decides your revenue
Your revenue is what users pay minus the store cut. Apple and Google take 30 percent by default, but if you make under a million dollars a year you qualify for their small-business program and keep 85 percent. Most of your success is decided before you launch, in picking an idea people will pay for and pricing it right. Build the wrong thing and no listing can save it.
Common questions
Do I need to know how to code to build an app?
No. You describe what you want in plain English and Claude Code writes the code. You steer it, test on your phone, and fix what feels wrong. You will pick up how the pieces fit together as you go, but you do not start by learning a programming language.
How much money do I need to start?
Very little. Claude Code, Expo, and the core tools have free or low-cost tiers. The real costs are a developer account, which is a one-time 25 dollars for Google and 99 dollars a year for Apple. You can build and test everything else for almost nothing.
How long before I ship my first app?
Many builders ship a first, simple app in about seven days of focused work. The build is the fast part with an AI coder. The store steps, Apple review and Google's closed test, add time. Start small and simple so your first submission is quick.
Is app building worth it as a side income?
It can be, if you build something people will pay for and price it right. It is real work, not free money, and revenue depends on picking a useful idea. Treat it seriously, ship consistently, and it can grow into steady subscription income.
What if there are already apps like mine?
Competition usually means real demand. Pick a narrow, specific angle instead of building a generic clone. A meal planner for one diet beats another all-purpose app, and a specific niche also clears Apple's rule against duplicate, low-value apps.
Can I build apps part time?
Yes, most people start on the side. Block a few hours a week for building and testing. Steady weekly effort beats one frantic weekend, and it keeps you moving through the pipeline until your first app is live.
Keep going
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