Constanza

Constanza is a habit-tracking app that opens and works in seconds. No account, nothing synced to any cloud, no ads and no analytics: it does not even declare the internet permission, so it could not connect even if it wanted to.

Each habit gets its own colour and its own schedule. The Today screen groups what is due now, what is due later and what you have already answered — and when a reminder arrives, you can answer it right from the notification, without even unlocking the phone.