Why a photo.
Every habit tracker asks you the same question at the end of the day: did you do it? And every one of them believes the answer.
A tick costs nothing. That is the problem with it. Tapping a box on a bad day feels the same as tapping it on a good one, and a streak made of taps tells you nothing about what actually happened. A photo costs a few seconds and it can only be taken in one place: where you are.
So Pruuf runs on photos. One on each training day, taken in the app, stamped with the time, shown to the people you chose. Your friends do not get a notification that you tapped a box. They get the picture.
It is built for the habits you can photograph: the session, the run, the court, the rack. That narrowness is deliberate. Reading and meditation are habits too, and there are good apps for them. Pruuf is a training app, and it stays one.
Some rules follow from that. Rest days are part of a training plan, so they count. A missed day should not erase a month, so there are Streak-Freezes and Repair-Tokens. A chat should be about today, so its messages are deleted after 24 hours, unless the recipient saves one or it is reported. And nothing you post is public unless you were already public before the rule changed; new proofs cannot be.
Who makes it
We're a small team in Berlin building our first app — and we're not aiming small.
Habit trackers bored us. Anyone can tick a box, and nobody sees it. We wanted something you do together, with a photo as the proof.
Where it stands
Pruuf is built for iOS and is coming to the App Store in Germany, Austria and Switzerland. It is free to download, with no subscription. The only purchases are Streak-Freezes and Repair-Tokens, sold once through Apple, and both can also be earned in the app. The minimum age is 18.
Questions, or want to try it early? Get in touch.