The One

Terms of Use

Updated October 5, 2026

By using The One, you agree to these terms. They are short because the app is simple too.

What it is

The One helps you keep one good habit and give up one bad one: mark your days, see your progress and your friends' streaks. The app is free.

Your account

You can try the app without an account, as a guest: guest data is kept for 30 days and deleted unless you sign in. You sign in with a Google or Apple account, or with an email and password. You are responsible for what happens in your account, and you don't use the app to bother others: spamming friend requests, pretending to be someone else or trying to get other people's data.

No medical promises

The One is a tool for keeping an eye on yourself, not medical help. If quitting a habit is related to your health or an addiction, talk to a specialist.

As is

We do our best to keep everything working and your data safe, but the app is provided “as is”, with no guarantee of uninterrupted operation.

Termination

You can stop using the app and ask us to delete your account at any time. We may close access for an account that breaks these terms.

Contact

Questions — write to paulopenacademy@gmail.com. About your data — see the privacy policy.