Free Protractor is an easy to use virtual protractor great for anything from checking your homework to helping with that DIY project. Colour coded angles make it easy for students to quickly get to grips with how a protractor works. Just tap or drag on the screen and the angle will follow your finger as easy as that. Free Protractor has many features including.
1. Camera mode the protractor appears superimposed on the camera view, great for checking the angle of real world objects.
2. Horizontal guide helps you to keep the protractor level.
3.Angle types this allows you the option of viewing the angle types e.g. acute obtuse.
4.Customisable use the apps settings to show or hide the various features depending on what you are doing.

What’s New

Version 2.0

New icon, new look and feel, removed ad banner, new features including camera mode.

Ratings and Reviews

3.1 out of 5
21 Ratings

21 Ratings

Christmas_Candle ,


A little bit difficult to position and hold steady, but decent. Did not crash with the camera option in use. Usable and free will use again.

Reader137684 ,

Good but ...

If you could take a picture it would be more useful. And yes, it is upside down so your hand gets in the way of the lens.

failed highschool student ,


this app is horrible. nobody in the right mind should use this app. there are so many problems with this. i’m pretty sure most of not all the 5 and 4 star reviews are bots. I HATE THIS APP. i just need something to help me with my homework and this was no help.


Peter Pomlett
16.8 MB

Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2012 Peter Pomlett
In-App Purchases
  1. 360 Degree Protractor $0.99
  2. Radians and Percentage Scales $0.99


  • Family Sharing

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

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