Cool game! I love the concept, and its quite fun to play. Cant wait to see the "coming soon" features when they are ready.
As far as constructive criticism goes... It did crash on me a few times, but it saved the game and no progress was lost. It would be nice to see that worked out at some point.
The UI is a little bit confusing, but I figured it out. The tutorial was a little daunting, perhaps maybe too in depth. I found myself just clicking through. Perhaps providing more info on the UI itself and less on the tutorial would help in both of these cases.
Oh one more thing on the tutorial, at the point where it says to hit the back button the arrow points at the button but on some devices like mine, the back button is on the other side. Just food for thought.
I really enjoyed my experience and I hope my feedback is helpful in further development!