Mast Log turns a private habit into a three-part check-in

Field notes

Each check-in can record a session or skip that entry, then optionally add a prompt and mood. The sample week shows how those details might appear alongside check-in days. The streak counts days checked in, not days with a recorded session, and its one weekly “Nut Save” still requires a check-in. The page labels the sample interaction a local demo that saves and sends nothing, so persistent app behavior is not demonstrated.