And Ruler

Turn Your Smartphone into a Precise Digital Ruler!

Need to measure small items on the go but don't have a physical tape measure or ruler nearby? Screen Ruler is the ultimate everyday tool designed to measure objects directly on your smartphone display with millimeter precision.

Equipped with an advanced PPI (Pixels Per Inch) calibration engine, Screen Ruler guarantees precise and reliable scale output across all Android screen sizes and display resolutions.🌟

Key Features
- 📐 Precise Screen Measurement: Get instant height and width readings in millimeters (mm) with intuitive onscreen scale guides.
- ⬛ Automatic Area Calculation: Automatically computes the total surface area ($mm^2$) in real time as you adjust the selection.
- 🎯 Touch & Drag Handles: Fine-tune measurements effortlessly using responsive corner and edge drag handles.
- ⚙️ Custom PPI Calibration: Adjust and store accurate PPI settings to ensure perfect $1:1$ physical scale matching on any device.
- 💾 Save & Manage: Save your measured dimensions for quick reference whenever you need them.
- 🌙 High-Contrast Dark UI: Clean, modern interface designed for effortless visibility and low screen eye-strain.

Perfect For Everyday Use
- Checking official ID or passport photo dimensions ($35\times45\text{ mm}$),
- Measuring credit cards, SIM cards, coin diameters, or small hardware parts,
- Finding ring sizes, jewelry components, or craft materials,
- Quick UI scale references for designers, developers, and hobbyists.

Download now and keep a reliable millimeter ruler right in your pocket!