Decoplanner software runs natively on PC/windows only. However, check out the walk through of how to install DecoPlanner on a Mac.
Mac users have had luck using freeware Wineskin to create a “bottle” in which a Windows program can run on Mac OS, without reboot and without a Windows license. Wineskin is available here.
A huge thank you to Wet Rocks Diving’s students Andrew & Tina Dow for this video.
For more information on DecoPlanner and alternate solutions/install how-tos for Mac, please visit this article.