corin.You only pay for what works.
Corin writes your app, then tests every part of it in a real browser — including security checks. You're billed only for what passes. Failed attempts are on us.
How it works
The build-test-bill loop.
Describe it
Tell Corin what you need in plain English — a booking page, a client portal, a way to track inventory.
Corin builds & verifies it
Corin writes the app and tests every feature in a real browser — clicking buttons, filling forms, checking for security holes.
You approve, pay for what passed
Review the result. You're billed only for the parts that verified working — never for attempts that failed.
Ask for changes, anytime
Something's wrong, or you want more. Fixes to what's already verified don't cost you again — you only pay for new work that passes.
The billing model
Your bill is a record of what actually works.
Every attempt is tested in a real browser. If it fails, it doesn't appear on your bill — it appears on ours. You only ever pay for verified, working results, drawn from credit you've already added — so a build can't run up a surprise charge.
When your credit runs low, Corin pauses and asks before doing more. It only ever spends what you've put in.
Your app, your data
Nothing to hold hostage.
Every app's data lives in your own Supabase project — we never hold the keys to it. And you can download the whole app as a single file any time, so you're never locked in.
What you can build
Real apps, not demos.
Built with Corin
A gear-rental marketplace, verified end to end.
Pricing
Start free. Pay only once it works.
Try Corin for free, then add credit when you're ready to keep building — charged only for verified work, $1.10 per check that passes.
Build and preview a working app, free. No card. You'll see it pass its checks before you decide.
Keep building past the free preview. $20 of credit added every month, cancel any time — and you're still only charged $1.10 per check that verifies. Removes the “Built with Corin” badge.
Charged only for verified work — $1.10 per check that passes, failed attempts free. Builds pause when your credit runs out; nothing is charged past it. Add credit any time.