GAP is the premier computer algebra system for Group Theory, Combinatorics, and other Discrete Mathematics. Gap.app is the native Mac interface for GAP.

The new 0.6 and 0.61 versions of Gap.app are updated and polished. They support the latest releases of GAP, and have several user-interface improvements. Install everything you need by downloading and dragging Gap.app to your Applications folder!

GAP is brought to you by the GAP group, including these authors.
The Gap.app interface for GAP is brought to you by Russ Woodroofe.

Get Gap.app

You can download Gap.app with or without GAP, or
visit the Gap.app SourceForge project page to help with the project.

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Gap.app + GAP

This edition of Gap.app includes the GAP system as well as the interface. If you don't already have a recent version of GAP installed, this is what you want.

Download now

485 MB download / 1.54 GB install
Includes GAP 4.11.0

Just Gap.app

This edition of Gap.app does not include the GAP system. It is for those who already have a recent version of GAP installed, and wish to use that version with the Gap.app interface.

Download now

1.8 MB download / 2.1 MB install

Gap.app source code and development pages

This link will take you to the Gap.app sourceforge project page, where you can get the source code for Gap.app. Mainly of interest for people who want to help improve Gap.app.

SF project page

If you're not sure which edition you need, click “Gap.app + GAP”.

Love Gap.app? Leave a review on SourceForge!

Using Gap.app (Video)

Click to watch the introduction video. (Closed captions available.)

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Support

For Gap.app support, you can contact Russ Woodroofe as: gapdotapp _at_ paranoia.emailengine.org
For GAP support, see the GAP contacts page.