Ranked in these QuestionsQuestion Ranking
Pro Multi platform
Works on Windows, Mac and Linux.
Gravit is completely free to use.
It was open source up until a recent release, however there are plans to open source it again in the future.
Pro Actively developed
Con Changing rapidly
The fast rate of growth/change for Gravit can be a pro in that in means plenty of new features.
However, it also makes the product fairly unpredictable.
For example: In the past year, Gravit was open sourced, then closed sourced again.