Millimeter is the best rated screen ruler with option to calibrate any Android device for accurate measurements on screen 📏. It has real full screen mode and besides common length and area measurements you will find many interesting features requested by app users: circle radius and diameter measurements, protractor for angles, spirit / 🔮 bubble level for tilt, splitting a segment or sector into equal parts, thread per inch (TPI) https://youtu.be/M1Qrbs2bgCY , etc.

Metric and imperial units are supported.

Thanks to feedback from our users the app usability has been improved with features like screen lock 🔒, manual value input, dark mode, fine grid on/off option. It is very user friendly tool for small object measurements or DIY projects.

Supported languages:
- English 🇺🇸, German 🇩🇪, Russian 🇷🇺, Japanese 🇯🇵 and French 🇫🇷 languages.

☎ Contact us at [email protected] if you need any assistance with the app or have suggestions for further improvements. Thank you!

VisTech.Projects Team.

Note:
measurement range limited by size of your screen and with fine calibration the app gives you accuracy comparable to standard ruler or measure tape.

Recent changes:
v2.3
- new Level feature
- fixes and improvements

v2.2 New features:
- Fine grid
- multi touch support (for easy measurements when object touches screen)
- fixes and improvements
v2.1 - new Protractor Mode for angle measurements: https://goo.gl/wquu2s