Say what you expect and how sure you are. In a few weeks, find out whether your 70% is really 70%.
Speak a prediction. It is transcribed on your phone, turned into a draft, and locked when you save it.
A record you can edit afterwards is not worth scoring. Once it is down, it stays as you said it.
Calibration puts your confidence against how often you were right, with the Brier score underneath.
The cloud asks awkward questions. A buddy that agrees with you is pleasant and useless.
No account, no sync, no analytics, no network requests at all. Export or delete everything in one tap.
There is nothing to break. A missed day costs nothing, and the reminders go quiet on their own.