The spending limit

On by default. Your bill cannot surprise you.

Every account has a spending limit and it is on from the first minute. On the Free plan it is fixed at $0: nothing is ever charged. On paid plans you set the number.

What happens at the limit

The app pauses. People who open it see a calm page saying it is paused, and you get an email. Nothing is charged beyond the limit. Raise it or turn it off in Billing, and the app is back within seconds.

Why we can promise this

Other platforms warn you that pausing "is not instantaneous" and bill you for the gap. We meter usage ourselves, every few seconds, and enforce the limit ourselves, so the gap is measured in seconds, not hours. And our edge traffic is on a flat rate, so a traffic spike can never turn into a surprise on our side either.

Turning it off

You can. It is a deliberate choice in Billing, with a sentence explaining what you are agreeing to. For a personal app there is almost never a reason to.