What does ZUZA measure?
Short answerDock time: how long your phone rests on the stand at the door. That is the only thing it measures, on every phone.
A session starts when you place the phone on the stand and ends when you pick it up. The app shows today's number only, with no charts.
If the app misses the moment you picked the phone up, it shows the time with a "~" sign, meaning "up to".
Last checked: 2026-10-05