LEAP is Windows-only software, but some users have had success using it on a Mac. This questions has been answered in the forums - please see the following threads:

https://www.energycommunity.org/default.asp?action=9&fid=22&TID=1374

https://www.energycommunity.org/default.asp?action=9&fid=22&tid=3737

https://www.energycommunity.org/default.asp?action=9&fid=22&TID=2940

https://www.energycommunity.org/default.asp?action=9&fid=22&TID=3651

Best,

Taylor