For a square matrix A, the inverse is written A-1. When A is multiplied by A-1 the result is the identity matrix I.

Versions for the app exist for iPad, iPhone and Apple Watch for 2x2, 3x3 and 4x4 matrices.

What’s New

Version 1.2

Upgrade to iOS 15.0, watchOS8

App Privacy

The developer, Donald Schaefer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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