10.0
2023-07-05
Improvements and bugfixing
5.5
2020-07-30
Bugfixing and improvements
5.4
2013-09-23
Improvements and Bug Fixes
5.2
2013-07-07
Improvements and bug fixes
5.0
2013-05-18
Improvements and Bug Fixes
4.0
2012-09-26
Multiple-choice self-tests in every lesson.
3.0
2011-11-02
Every lesson now includes multiple video examples, interactive practice problems, a challenge problem, a worksheet of extra problems, and a notes page.
2.0
2011-08-25
Improved code for better app performance