This app turns your iPhone into an unlimited-length ruler.

- Unlimited-length
- Support both inch and centimeter
- Back to top feature
- Unit switch function
- Easy to use
- Good-looking UI

How To Use:
Put your finger on the screen, and slide iPhone/iPad with the other hand.

What’s New

Version 1.4

+ Compatible with iOS 14
+ Bugfix

Ratings and Reviews

3.0 out of 5
49 Ratings

49 Ratings

TheDurf ,

Works but portrait/landscape are reversed on iPad Pro

Lots of adds but still usable. Works pretty good for what I need it for. 1 star off for having to read it sideways and 1 star off for the adds. I don't mind the adds, I mean c'mon, it's free, but there is a LOT of ads. Maybe try having an ad on startup but not every 3 minutes when your using it.

Adrine ,

Just What It Says

It's a ruler! If you need to measure a large area then wait til you can get your hands on a tape measure. Otherwise if you need to quickly check the size of something when you're out on the go it's a handy tool to have. I have an iPhone SE, iPhone 4 & an iPad & have used it on all of them & have had no problem with inaccuracies. Yes, there are ads but they have not interfered with my use of the app. Good app. Does what it says.

subface ,

Go the extra step please

Instead of assume normal people know what the diagonal dimension is of their phone and ask them to enter it as the first thing they do, why don’t you detect the phone model and do it automatically?

It seems like meeting someone for the first time and you go straight to “how old are you?”

App Privacy

The developer, 齐 陈, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like