When you start the app, a black border is right and down (approximately 8 mm wide). Maybe this app is intended only for devices with smaller displays, but actually, the app should be large "spread" across the screen then yes. The menu I personally find confusing, but that's more a matter of taste. When I start a game is where before was the black edge, pushed toward the menu and where the menu was in front of it, is now the game. If I wegtippe the stones, flicker and flicker around to the right where you can see the menu mahjong stones, what bothers me personally. A plus point there, because in one game mode, you can create a level Duch in a certain time to unlock more levels. Actually, I do Mahjong totally happy, but this app has not convinced me ... I've just downloaded me because she was free app today, but the € 0.99 are not worth it to me for this app.