Why AI-built apps stall at 80% (and how to finish yours)

You’re not doing it wrong. This is the most common way AI-built apps get stuck. Here’s why it happens and what helps.

The five places apps get stuck

1. The plan lives in your head. The tool builds what you typed, so anything you didn’t say gets guessed. Guesses become extra features and odd behaviour, and fixing them costs more prompts.
2. A change in one place breaks another. Without tests, nothing tells the tool, or you, that last week’s page just stopped working.
3. Credits go on rework. Many builders charge per prompt, so each fix loop costs money. Rapid Developers’ Lovable alternatives guide (updated Sept 2026) calls runaway credit burn a top reason people leave Lovable, and lists looping AI that wastes credits as its own complaint.
4. The last 20–30% is different work. The same guide describes a “70% problem”: the last 20–30% of a project needs manual work. Real sign-in, payments, email, a domain and security aren’t more screens. They need accounts, keys and settings in other services. This is where many people stop.
5. Nobody checked it end to end. The app works on the screen you tested. It’s the screen you didn’t test that fails in front of your first customer.

What helps, whatever tool you use

• Write down what the app must do before building: five or six things a person can do, in plain words. Check each one at the end.
• Change one thing at a time, and test the things around it.
• Keep your code in your own GitHub from the start, so you can bring in a developer or switch tools.
• Set up sign-in, payments and email early, not at the end. They’re where surprises hide.
• Know what it costs before the next round. If you’re on credits, decide how much more you’ll spend before you start another fix loop.
• Test like a stranger: a fresh browser, a new account, a phone.

How Ori approaches it

Ori is an AI software team, and it builds apps in the order a real team would:

1. It asks about what you want and writes it down. You approve the plan.
2. You get a clickable prototype before anything is built. Direction, design, the plan and the prototype are free.
3. Independent QA tests every journey in the plan and sends failures back to be fixed.
4. It guides you through hosting, sign-in and email, and checks they work.
5. Your code and a record of every step live in your own GitHub.

Already stuck in another tool?

Start a new Ori prototype from the same idea. It’s free. Ori can’t read your existing app yet, so you’ll describe it again, and you can keep the best parts of what you built as your answers.