About Ruler - Screen Ruler, cm inch
Measure the objects around you right on your screen: ruler, protractor and bubble level in one app. Ruler (NeoRuler) turns your smartphone screen into a real measuring tool. With no extra hardware you can measure lengths...
Measure the objects around you right on your screen: ruler, protractor and bubble level in one app.
Ruler (NeoRuler) turns your smartphone screen into a real measuring tool. With no extra hardware you can measure lengths in centimeters and inches, check angles with the protractor, and level shelves or frames with the bubble level. Every measurement can be saved to your history for later.
■ Key features
[Length]
• On-screen ruler: show a scale on your display and measure objects directly
• Measurement markers: measure the distance between two points; tap the ruler to move a marker fast
• Single-line ruler: measure a length on one line, or measure width and height to get the area automatically
• cm / inch scales (choose inch with 1/8 or 1/10 divisions)
• Screen calibration: match the scale to your exact device using a real object such as a credit card
[Angle]
• Protractor: drag two arms on the screen to measure an angle and save the result
[Level]
• Bubble level: check tilt in real time with zero-point calibration. Perfect for hanging frames, shelves and furniture
[Unit conversion]
• Length converter: from nanometers to miles; convert from a dropdown, copy the result, swap sides
[History & sharing]
• Measurement history: the last 200 measurements are saved automatically; rename, copy or delete them
• Share results: turn a measurement into an image card and share it in messengers or social apps
[Comfort]
• Keep screen on while measuring · haptic feedback
• Landscape-optimized: measure longer lengths on a wide screen
• Dark mode: comfortable to use in low light
■ Great for
• Quickly measuring something when no tape measure or ruler is around
• Checking furniture or parcel sizes before ordering online
• Hanging frames and shelves perfectly level
• DIY, woodworking and interior projects that need angles
• Working with both cm and inch, or converting units often
• Students and hobbyists who measure small things often
■ Why NeoRuler
• No camera or location permission required
• Measuring works offline, without an internet connection
• Screen calibration compensates for different display sizes
• Ruler, protractor, level, unit converter and history in a single app: no need to install several tools
• Free to use, with an optional in-app purchase to remove ads
※ The on-screen ruler measures within the size of your screen. For accurate results, calibrate the scale the first time you use the app.
Start using your phone as a ruler today!
Previous Versions
Here you can find the changelog of Ruler - Screen Ruler, cm inch since it was posted on our website on 2013-08-22 12:04:33.
The latest version is 7.1.11.61007 and it was updated on 2026-10-16 08:25:36. See below the changes in each version.
Ruler - Screen Ruler, cm inch version 7.1.11.61007
Updated At: 2026-10-07
Changes: • Removed the full-screen ad that appeared when you returned to the app
• The ruler scale is now more accurate for your device and screen resolution
• Your manual calibration now applies to cm, inches and the horizontal/vertical measure
• Folding or unfolding your phone now resizes the ruler and markers to fit
• Ad removal payments and purchase restore are now clearer and more reliable
Ruler - Screen Ruler, cm inch version 7.1.10.60926
Updated At: 2026-09-25
Changes: • A fresh new look with a new app icon and warm amber colors
• Refreshed the settings screen with easy-to-read cards
• The level now has angle cards and a glass-vial bubble
• History entries now show a type icon and your label
• The Clear all button in History is easier to find
Ruler - Screen Ruler, cm inch version 7.1.9.60917
Updated At: 2026-09-17
Changes: • Decimal input (e.g. 1.5) now works in the unit converter
• The bubble level now moves toward the higher side
• Fine-tune ruler calibration in 0.1% steps with a tap
• Tool buttons now show labels and fit large font sizes
• Undo for deleted history items and other usability fixes
Ruler - Screen Ruler, cm inch version 7.1.8.60726
Updated At: 2026-07-25
Changes: • Share your measurement results as an image card
• Recommend the app to friends with a new share option
• Stability and usability improvements
Ruler - Screen Ruler, cm inch version 7.1.5.60704
Updated At: 2026-07-04
Changes: • Remove Ads purchase — a one-time purchase removes all ads forever
• Watch an ad for 30 minutes ad-free — no purchase needed
• Bubble Level — measure tilt by leveling your device
• Protractor — drag two arms to measure angles
• Measurement History — save and revisit your measurements
• Smoother ad display (no overlapping ads) and stability improvements
Ruler - Screen Ruler, cm inch version 7.1.4.60620
Updated At: 2026-06-20
Changes: • Measurement markers — measure the distance between two points
• Tap the ruler to move the nearest marker instantly
• Copy & share measured values
• Improved unit converter — dropdown picker, copy result, swap sides
• Keep screen on while measuring / haptic feedback options
• Calibration guide and a fresh new icon
• Stability improvements and bug fixes
Ruler - Screen Ruler, cm inch version 7.1.2.60606
Updated At: 2026-06-06
Changes: improvement of function.
horizontal scroll.
Ruler - Screen Ruler, cm inch version 1.0.9
Updated At: 2012-10-12
Changes: Several fixes and updates
Disclaimer
Official Google Play Link
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