Gems or jewels ?

If I just received a reward for watching an ad I get no warning when swiping near the screen edge during play & the game aborts & I lose those bonus turns. This is the most frustrating part of the app. Needs in app volume slider so I quiet it down a bit without turning down my whole device. I don't like the sound off or full blast.

Great brain exercise for seniors especially for those who are w/o partners. AND HOG games use hand -eye coordination. I recommend them to all my clients...keeps them thinking.

Since the last update the bottom buttons on my phone have disappeared. Now I can't "go back" or exit the game. Hopefully this gets fixed because otherwise it's a great game. Edit: New version 483 has fixed the issue I experienced and therefore I now give the game 4 stars. Thank you developers.