Introducing Simon 4!
Simon version 4 is now available. It includes a significantly redesigned appearance, group support, and numerous other improvements. Plus, version 4 licenses enable an unlimited number of tests!
Important: please note that Simon 4 requires a minimum of Mac OS X 10.10 (Yosemite), and is a paid upgrade from Simon 3. Purchasers since November 1, 2014 are eligible for a free upgrade, and Simon Express, formerly in the Mac App Store, is automatically recognized as a version 3 license.