MeasureMate: Ruler, Protractor

MeasureMate puts a ruler and a protractor on your phone.

Ruler
- Measure small objects placed on or held against your screen, in millimetres, centimetres or inches.
- Drag four handles to measure width and height at the same time; lock any handle so it stays put.
- Calibrate the ruler against a real ruler or a card for a closer match on your phone. The setting is saved.
- Show the camera image behind the ruler.

Protractor
- Measure tilt from 0 to 180 degrees with your phone's motion sensor, or place both lines by hand to measure an angle on the screen.
- Show the camera image behind the protractor to line it up with an object.

History
- Save a measurement, with a photo that includes the ruler or protractor if you like.
- Open, share or delete saved measurements, or clear the whole history.

Settings
- Default unit, handle locks, overlay in saved photos, ruler background colour and dark mode.

Good to know
- The ruler can only measure objects that fit on your screen. Without calibration, sizes are estimated from the screen size your phone reports and can be off.
- Lines drawn over the camera image are a visual guide only. The camera image is not to scale.
- No account is needed. Your measurements are stored on your device.

Recent changes:
Version 2.0.0 is a full redesign of the ruler, protractor and history. Calibration, the four-handle ruler, tilt and hand-line protractor modes and saved measurements all work the same as before, with a clearer layout.