Screen Ruler is a simple measurement tool that lets you use your device screen as a ruler.
Choose between cm and in, calibrate the DPI, and measure small objects directly on the screen using clear ruler marks.
The app includes:
- Centimeter and inch units
- On-screen ruler marks
- DPI calibration option
- Simple dark interface
- Easy manual adjustment
- Quick screen-based measuring
For better accuracy, calibrate the DPI using a known object such as a credit card.