Ruler

Xalpha Lab

About this app

A simple, user-friendly and accurate ruler for your phone!

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 permission required


Update history:

3.5 -- Millimeters, set to predefined length
3.3 -- Calibrate with a credit card, remove saved measurements from history
3.2 -- Fractional display of measurements in inches
3.0 -- Android Material theme and new scale for measurements in inches
2.1 -- Calibrate with a coin, default calibration button (reset)
2.0 -- You can now save your measurements
1.7 -- Night mode to save battery and/or read more easily at night
1.6 -- Added default calibration for common devices (Nexus series, Galaxy S series, Galaxy Note 1, 2 and 3)

Ratings and reviews

Designed and works well with its simplicity and ease, just what I was looking for. Also works well with auto-rotate of portrait/landscape view promptly. Would like it if the menu wasn't tap-to-show/hide at the top, but rather always shown in the blank middle realestate (instead of showing, "Tap to..." there).

THIS!!! is an app so simple that one could possibly pick something else and make a mistake. No fancy tricks, what you measure is what you get. Standard or metric, you get simplicity at it's finest. I do like apps that have options, yes, just as most people do, but when you just want to know any measurement of any semi small I tiny object, just place it on the screen and do what you do and BaM!! I could go on and on. Get it!, if you like less complicated!

This app is perfect! I've tried a dozen others & This one's by far the best. It allows manual entry for when I'm shopping & want to visualize the size of something. When measuring in person it allows you to set X,Y lengths separately and with slider bars on the edge. So I can actually measure without the object messing things up. There's also a save feature for recall. It's very professional with a ton of useful features yet somehow provided completely ad free!

What's new

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.