Once you tap Start, you can lock the phone and forget about it. Yut keeps recording in the background.
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On screen
Recording
0.35 mi
Locked, in a pocket
Still recording
Closed by iOS
Picks up after ~200 m
Recording carries on whether Yut is on screen, in the background, or closed by iOS.
If iOS closes the app
On a long day iOS may close apps to save memory, and a swipe-up can close Yut too. Your recording isn't lost:
1 iOS restarts Yut's location tracking in the background once you've moved about 200 m (650 ft).
2 The points recorded meanwhile are kept safely on the phone.
3 Next time you open Yut, the route comes back and those points are filled in.
Dashed lines are gaps
Where Yut had no points for more than a minute and you moved more than 100 m (330 ft), the line is drawn thin and dashed instead of guessed at. The same goes for the stretch across a pause.
1 1 A gap : Yut couldn't see you here, so it draws a dashed line straight across.