Have you ever wanted to measure the length of something under 9" (4" for iPhone)?

Don't want to spend 10 cents on a wood ruler at your local hardware store?

Well, you're in luck! With Ruler, you can measure any small object. Inches or centimeters; it doesn't matter--Ruler will make the measurement!

Special Features:

• Allows you to include the bezel of your device in your measurement, allowing you to measure objects larger than your screen!

• Touch two points on screen to have Ruler tell you their distance apart!

• Email your measurements.

What’s New

Version 3.1.4

Updated built in device library.

Ratings and Reviews

4.5 out of 5
201 Ratings

201 Ratings

Rain on Sunday ,

Ads block utility

An ad bar appears across the ruler at the bottom of the screen. It's in the one worst place it could possibly be to prevent being able to measure an object. It's only a buck to remove them, or is it? They play a game with "how much is it worth to you to remove the ads?" The polices range from $0.99 to several dollars. It's just a measuring stick. Businesses give them away for free. It's not worth a buck to me. Time to find a new app.

Tim-on-the-train ,

Not too bad. You can measure stuff with your phone

Look, what more do you want. It's not like the iPhone is an ideal ruler. The lines thing is easier erased when there are too many of them. Not a big deal. It's free and convenient as hell not to have to get up and get a ruler.

Ckmw345 ,

Very bad!!!!

This app is ridiculous. The lines pop up all over the screen and you have to continually delete them. I have tried many times to make it work. But it doesn't. Thinking the app would work if the ads were not there I was suckered into paying the 99 cents. The 99 cent charge is a scam. They will not give a refund. When I file a problem complaint with Apple's "Report a Problem", I am directed in circles, filling out more forms and giving more information to the developer. Please be forewarned, do not purchase anything from this developer, Walz Development. You will be sorry if you do.


Jonathon Walz
41.1 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Simplified Chinese, Spanish

Age Rating
In-App Purchases
  1. complete ad removal $0.99
  2. complete ad removal $1.99
  3. complete ad removal $2.99


  • Family Sharing

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

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