I would be interested in hearing about what made them to abandon RubyMotion.
Then I discovered React Native, not only it is cross-platform (Android, Windows) but it is also a joy to work with (the last time i felt this was with Rails). My apps are now completely on 1 single code base, very maintainable, as native as I want, and hardly crash. Besides, the binaries are so small (4MB iOS & 8MB Android).
(PS: My android app https://play.google.com/store/apps/details?id=plus.land)
> Why did we move away from RubyMotion? Quite honestly: we needed to buckle down and learn the platform as a team.
Doesn't sound like there was any real abandonment as much as "We should use the tools the platform supplies".