Handy Ruler

Use your smartphone screen as a ruler, and measure the length/size of small objects. You always have this smart tool with you when you carry your smartphone. You easily measure the length or size of the object by placing it at the screen and adjusting the measuring area tightly. The phone is calibrated already at the factory, but you can also do a calibration yourself by using another ruler, or a suitable object of known size. This app does not show ads.

Key features:
✓ Handy ruler
✓ Measures in cm, or inches (decimal or fraction)
✓ Just measure anything that fits into the screen
✓ Measures just length, or length and width at the same time.
✓ Has a high precision caliper mode for accurate adjustment of the measuring area.
✓ The measurements can be stored in a list. A listed measurement can be retrieved back to the screen.
✓ Calibrated already at the factory. If that is not good enough it is possibe to calibrate by using another ruler or a suitable object of known size such as a credit card.
✓ Easy to use
✓ NO ADS !!!

Disclaimer:
Be careful to not scratching your screen when putting objects at it.

Support/feedback: [email protected]

Category : Tools

Reviews (30)

Lum. F. Mar 11, 2022

Best ruler app out there imo. Used it for years now. Had to dig it out of my old app list as it wasn't appearing in the play store search. Does everything you need measurementwise. Doesn't lose calibration like most of the others so you can rely on it (plenty out there lose all calibration when they update, you don't get a warning you just realise at some point all your measurements are wrong. That's not the point of a rule. Also small size (why the others need 10mb more I don't know). No ads 👍

A. G. u. Nov 13, 2019

Wow this ruler app is beautiful. It only needs a small help text for people who can't figure out how to calibrate it. It should also have a way to type the calibration numbers. For those who don't know how to calibrate it, touch on the rulers and drag them, do not touch middle part of the screen, it does nothing.

Ant. S. Sep 10, 2020

Great simple ruler that is easy to read and see. No strange colors, ads or other issues. If only we could add a simple bubble level in the center?

Jen. M. Nov 14, 2021

Excellent. It'd be nice if it could do half millimeter increments, as well. Still reliable, ad free, and convenient and easy to use.

A. G. u. Dec 11, 2018

Need calibration, when it's calibrated even doesn't match. But It has a lot of useful settings. But finally I uninstalled it. There are better apps more accurate. Fix it.

A. G. u. Jan 14, 2019

Very nice! Good features. Could use a bit more explanation of the settings icons. Suggest a popup when holding your finger on an icon.

A. G. u. May 10, 2019

Perfect! Simple to use. The auto calibration when downloaded worked perfectly on my Pixel 2.

Bre. H. Oct 22, 2020

Great app. Was calibrated correctly when I first opened it. I checked it with my screen length and width specs.

A. G. u. Oct 22, 2019

Best ruler app. There are no ads and the best thing about it is that it doesn't autorotate if you have to move your phone.

Unk. U. Sep 21, 2020

This is very useful. Took me a bit of fiddling to calibrate it, but now I use it quite often. Thank you so much for having centimeter functionality!

A. G. u. Sep 10, 2019

Best ruler app out there. Special thanks for no ads, otherwise might not be so impressed with experience

A. G. u. Jul 12, 2021

Very useful and light app. It has precise measurement feature by which mistakes can be prevented.

Bar. Z. Dec 1, 2020

Works but wasn't calibrated well initially, if you need a ruler and don't have an actual one to use for calibration this app might be useless to you

bar. j. Jun 2, 2021

Wonderful for when there's no rule around. Got tired of using a dollar bill to estimate length.

A. G. u. Mar 17, 2020

Does what or says on the tin, and without ads. Could use a Dark mode.

Cra. G. Aug 20, 2020

Works very well. Easy to calibrate and use. Highly recommended.

A. G. u. Feb 10, 2019

Very usefull to have on phone. Just Needs Millimetres as well as centimetres

Mar. F. Dec 10, 2020

I don't normally rate apps, no matter how much I like them but thank you honestly, from the bottom of my heart. Thank you.

A. G. u. Jan 26, 2019

Simple and perfect. Only the calibration was a bit difficult for me. I've tried more applications, and finally this one won.

A. G. u. Dec 8, 2018

Its great to have with you when buying timber etc in the DIY store

A. G. u. Jul 27, 2019

easy to use calibration is self explanatory Greg

A. G. u. Mar 19, 2019

As advertised. Outstanding!

A. G. u. Feb 12, 2019

simple & easy to use

A. G. u. Jul 17, 2019

Very useful and handy. Thanks

A. G. u. Oct 19, 2018

Good tools for emergency condition when we do not bring the real ruler.

A. G. u. Feb 17, 2019

can't figure out how to calibrate. It doesn't change

A. G. u. Nov 23, 2018

First 10 mins using app and all is good.

A. G. u. Dec 28, 2019

Very useful since I can't convert to save my life

A. G. u. Apr 27, 2019

good. please add camera features for ruling

A. G. u. Oct 1, 2018

Hmmmmmm. Sorry not what I exspected and only measures 4 inches?. I just couldnt figure it out. Happy that it works for the 4 and 5 star people though.