- I use Fabric Beta for iOS and Android beta testing with my apps. For Android, it gets delivered to testers instantly rather then waiting couple hours to get into Play Store Beta testing program and it's a much better UX for users getting on board with testing app. For iOS, I simply feel it is a better product then TestFlight. For beta testers for developers, I feel it is better in all the ways.Yep we're using Fabric for app distribution. But it would be great to have the ability to invite people to use the app in Beta mode without having to add device IDs or adding emails etc - just send out an invite to group of people for Beta testing.