The app has been updated to work with iOS13

Through a series of 26 challenges, the user will learn the principles behind permutation groups for solving puzzles like The Cube. Each challenge introduces a new concept like the order of a permutation, conjugations, and commutators. Mastering all of the challenges will enable the user to solve these puzzles and other puzzles based on this kind of math. Detailed instructions can be found on the app website at

What’s New

Version 1.1

Has been updated so that the 3D graphics work for iOS 13.

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

fratepencil ,

Great app

Great puzzle app developed by an even greater teacher.

App Privacy

The developer, Gary Rubinstein, 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.

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