I have some quality assurance background in the game industry, so I tested a lot my game before releasing it, trying to find all the weird bugs. And I have some friends too who tried to break it.
Testflight for iOS and Hockey for Android. We also plan to release a more polished build of games to press and some of the community to get the feedback that really matters. Somebody once told me, "do not fall in love with your idea, once others fall in love, then you can".