Curve Tracker turns your iPhone into a motorcycle lean angle tracker. The app uses the motion sensors built into your phone to record your lean angle through every corner of your ride – no extra hardware needed. After the ride you can see how far you leaned, in which corner and in which direction.

What the lean angle tracker shows
- Your maximum lean angle of the ride, to the left and to the right
- The lean angle of every single recorded corner
- Where on your route each corner was
Mount the phone, start the ride
Mount your iPhone firmly on your motorcycle or motorbike, start a recording and ride. Look at your lean angle data once you have stopped – never while riding.
Draft: add setup steps and accuracy notes.