A while back I reviewed a free game called Push Your Luck. Roll or Don't is essentially a commercial version of this game and is another knockoff of the Sid Sackson game called Can't Stop.
While Push Your Luck is well done and is a good first look at this type of game Roll or Don't is a superior version with three different styles of AI. With Push Your Luck I would always win. My win rate with this on the default settings is 29%. Roll or Don't also features several rules variations to play and can choose to play with less than four players. I'm very happy to see this make the jump from other platforms to the Android OS. If you liked Push Your Luck then you'll love this game.