TrueLevel

A precise pocket spirit level and angle logger. Bubble, pitch and roll degrees, zeroing, and a saved history.

What it is

Lay your iPhone on any surface and read how level it is two ways at once: a bubble that drifts toward the high side, and exact pitch and roll in degrees. Big monospaced numbers stay readable across the room. A straightforward utility tool — for shelves, frames, tripods, appliances, or settling an argument about a sloping floor.

Three things it does

A 2D bubble level that turns green within your chosen tolerance, single-axis pitch and roll readouts, one-tap zeroing against any reference plane, and an angle log you can label and keep.

Private by design

Zero data leaves your device. No account, no cloud, no analytics, no third-party SDKs. Motion is read only while the app is open in front of you.