I've reported my fair share of bugs but the main issue with the android app is that the code is amateurish and poorly tested. Lots of the crash bugs are just devs not checking for non existent values and relying on perfect network conditions.
But yeah, It gets the job done, it's just not a great app.
First question is why do you want a forge ? Knowing the feature you need out of it is what should drive your decision.
Personally I would question the benefit of allocating ~5% of your work time to anything that isn't core building your product but that's up to you.