Three steps
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Say what you want
One sentence is enough. A sketch or a photo works too — drop it anywhere on the page.
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Pick a model
Several are on offer at any time. Some read pictures, some are quicker; the picker says which is which.
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Keep talking to it
“Bigger buttons.” “Add a dark mode.” Every change is a step you can go back to, and what you end up with is one HTML file you can download.
Questions
Is it free?
Yes, and it stays that way. No tier, no trial, no card. The service pays for the model calls, and 5 builds a day — counted separately for every person — is the honest amount it can afford to give away.
Why do I need an account?
So the limit means one person. An email and a six-digit code are the whole sign-up: no password, no card, nothing else asked.
What happens to what I make?
It is kept for 7 days, counted from when the project was created, and then deleted. Every project shows its own date, and one click downloads it — one project or all of them, with the whole edit history inside.
Which models are available?
Whichever are switched on that day. The list has carried models from OpenAI, Anthropic, Google, DeepSeek, Groq, Z.ai and OpenRouter; the ones that can read pictures are marked in the picker.
Can I change an app after it is built?
That is the point of it. Say what should be different and it gets rebuilt around your words, keeping everything it already had. Each edit is another step, and every step is still there.
Does it work on a phone?
Yes — the chat, the preview and the finished app all run there. A long idea is nicer to type with a keyboard, but nothing here is desktop-only.