Millimeter - screen ruler app

Millimeter is a free, easy-to-use screen ruler app that lets you measure small objects that fit on your phone or tablet screen.
Enjoy accurate, ad-free measurements and a clean full-screen experience (full-screen mode is included in Pro).

🌟 Key Features

Accurate measurements on any device:
Easily calibrate your screen ruler in Calibration Mode using common reference objects such as coins, credit cards, or other standard items.

Customizable experience:
Upgrade to Pro to unlock extra tools and advanced measuring modes for even more flexibility.

📏 Free Version Includes:

- Screen calibration using standard or custom objects.
- Basic Ruler Mode for measuring in metric units (mm).

💳 Pro Version Unlocks:

- Multiple units: millimeters (mm) & inches (in) with fractions and decimal scales.
- Vertical ruler for 2D measurements. 📐
- Area measurement for objects on the screen. ⬛
- W/H ratio calculator for rectangular objects.
- Spirit / bubble level to check tilt or incline.
- Parts Mode to divide lengths or objects into equal segments.
- Thread-per-inch (TPI) pattern for measuring threads and screws. 🔩
- Circle Mode to measure circular objects and split circles into equal sectors. 🔴
- Protractor / Goniometer for angle measurements.
- Lock / Unlock rulers in any mode for easier handling. 🔒
- Fine grid (1 mm) for precise alignment. 👍
- Snap-to-fraction & variable slider speeds for smooth control.
- Manual input for exact sizes, diameters, or part counts. ⌨
- Black & White theme for power saving and better contrast. 🌓

🔧 Perfect for Measuring:

Jewelry and rings 💍, screws and bolts, buttons, knitting needles and patterns, washers, insects, mosaic tiles, hooks, craft materials, frame angles, and more – any small object that fits your screen.

🌍 Supported Languages:

English, German, Russian, Japanese, and French.

📞 Support

If you encounter any issues, please contact us at support@vistechprojects.com – we’re here to help.

📖 Learn more: http://goo.gl/304nJB

VisTech.Projects Team