Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app i-Ruler by Idan Sheetrit, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC


By Idan Sheetrit

Open iTunes to buy and download apps.


FREE for limited time!

- Number 1 FREE app by Mashable! -

Simply measure length in cm or inches using your iPhone or iPod-touch.

The most comfortable and easy to use ruler for your iPhone, See screenshots or just download and try it for FREE!

#1 - Ruler app on more countries than we can count with more than 2 MILLION happy users worldwide!

Just put your finger on the screen and slide your iPhone. It's as simple as that!

You can select the ruler type by tapping once on the screen.

Now you can take a ruler wherever you go! You must give it a try!

We've added more rulers types, So, You can upgrade and add the one you like to i-Ruler (inside the app).

You can watch this demonstration video:

You should give it a try and join more than 2,000,000 happy users worldwide.

Important: iPhone and iPod-touch only, measurements with iPad is not supported (you'll get inaccurate results). We're working on iPad version and it would be available soon.

If you have problems with the application please use the application support otherwise we cannot contact you to understand the problem.

Customer Review:

"Best free ruler app around!"

Love It
"Absolutely love that app! The best ruler I know!"

"Should be built-in with the iPhone!!!"

What's New in Version 4.0.1

Bug fixes and improvements.

If you like the app, please rate it on the App Store every time an update comes out!
As always, your iTunes ratings and reviews keep the updates coming!


Your feedback is super valuable for us. Please send us more feedback and feature suggestions. We promise to reply every request.

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5

Customer Reviews

Works on iPhone 5 to date

I double checked the scale of the i Ruler to my sewing ruler and it is exactly the same size for iPhone 5. I use it for checking the gauge when knitting or sewing and other crafts. There does not seem to be pop up ads, only ads on the bottom of screen. Although it is easy to accidentally open ads when measuring. Free ruler goes to 8 inches and has cm side as well. When I scrolled the ruler to 8 inches the app does prompt you to upgrade to there pro which I have no idea what it cost.


App requests a review & then still shows incessant ads for other programs.

It's ok

I use it to check gage while crocheting.

View In iTunes
  • Free
  • Category: Utilities
  • Updated:
  • Version: 4.0.1
  • Size: 24.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Three feet Ruler$1.99
  2. Two feet Ruler$1.99
  3. One meter Ruler$1.99
  4. Half meter Ruler$0.99
  5. 3ft Designed Ruler$2.99
  6. 1m Designed Ruler$2.99