If you don't like the Mac App Store, you can purchase Tree directly from the developer by requesting a special purchase page. (See Contact at the bottom of the page for instructions.)
Version 1.9.6 (1.9.7):
Note: The demo version is currently at 1.9.7. The version available for purchase on the Mac App Store is 1.9.6.
- Fixed issues that would occur on OS X 10.10.
- OS X 10.6.6 or later (purchase)
- OS X 10.6 or later (demo)