Certain applications might not work as well on all platforms or might perform better on particular devices. It's also a good idea to see if the app offers new users bonuses or promotions, as these can improve your first experience and increase your playing opportunitiespin wins without requiring a large financial outlay. In the end, spending some time investigating and contrasting various rummy apps will enable you to identify one that complements your gaming tastes and increases your pleasure of this traditional card game. Learning the Fundamentals of Rummy. Rummy on mobile apps can be both entertaining and difficult, but there are a few tricks you can use to get better at the game and raise your chances of winning. Get acquainted with the rules of the particular rummy variation you are playing first.