Ruler: Measure Kit

Ruler: Measure Kit turns your phone into a small toolbox. A real ruler on the screen, a bubble level and a protractor — all offline, all in one app.

RULER

• Centimeters and inches at the same time — cm on the left edge, inches on the right

• Two draggable markers: measure between any two points, not only from zero

• Millimeter marks and inch fractions down to 1/16"

• Reads the distance in both units at once

BUBBLE LEVEL

• Two-axis bubble for flat surfaces, with the tilt in degrees

• Turns green the moment the surface is level

• Set your own zero on any surface and reset it whenever you want

PROTRACTOR

• Drag the two arms and read the angle instantly

• Turn on the camera to lay the protractor over a real object

• Works with the camera off too — the permission is optional

CALIBRATION

Screens differ from phone to phone. Place any credit card on the screen, adjust until the outline matches it, and the ruler becomes accurate on your device. It takes ten seconds and it is saved for good.

GOOD TO KNOW

• Works completely offline — no account, no sign-up

• English, Portuguese, Spanish, French, German, Italian and Japanese

• The ruler measures objects up to the size of your screen

• Accuracy depends on your screen, so calibrate once for the best result

Measure a bolt, level a shelf, check an angle. No tape measure needed.