About Ruler
Use a coin or a credit card to calibrate the ruler anywhere, when you don't have a real ruler with you! - Ad free, for real, forever! - Pick your units: fractional inches, decimal inches, centimeters or millimeters -...
Use a coin or a credit card to calibrate the ruler anywhere, when you don't have a real ruler with you!
- Ad free, for real, forever!
- Pick your units: fractional inches, decimal inches, centimeters or millimeters
- Calibrate your ruler with a credit card to get you started anytime, anywhere
- Don't have a credit card with you? Calibrate your ruler with a coin!
- Calibrate your ruler with a real ruler to achieve the best precision in your measurement transfers
- Manually set the ruler to a known length for accurate measurements
- Night mode to save battery (on AMOLED screens) and to relieve your eyes at night
- Save your measurements for future use
- No permissions required
Previous Versions
Here you can find the changelog of Ruler since it was posted on our website on 2019-10-26 00:06:10.
The latest version is 3.7.2 and it was updated on 2026-06-11 17:43:23. See below the changes in each version.
Ruler version 3.7.2
Updated At: 2024-11-15
Changes: Improve calibration accuracy by moving the calibration handles 3x slower than the actual movement, allowing more precise control of the position.
Fix buggy 1/2 inch subdivision toggle.
Fix issues for devices with a notch or cutout a the top of the screen.
Add fullscreen toggle to use the space under display cutouts (e.g. camera, notch).
Ruler version 3.7.1
Updated At: 2024-11-15
Changes: Fix issues for devices with a notch or cutout a the top of the screen.
Add fullscreen toggle to use the space under display cutouts (e.g. camera, notch).
Add Swedish krona to available currencies for calibration as well as Swedish localization.
Minor UI improvements.
Ruler version 3.6.5
Updated At: 2024-11-08
Changes: Fix issues with tall devices such as the Pixel 2 XL, and devices with a notch a the top of the screen.
Add Swedish krona to available currencies for calibration as well as Swedish localization.
Minor UI improvements.
Disclaimer
External Download
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