Gin Rummy.

JJPlay Gin Rummy, the best FREE Gin Rummy experience available on smartphones and tablets.
Get ready to out wit your opponents in this American classic.

ONLINE MULTIPLAYER
Automatic matchmaking – So you always find fun and challenging opponents.
Or play with friends – Just log in with Facebook to connect with each other.
Or play offline with the computer.

COMPLETELY FREE TO PLAY
No registration
No dangerous permissions

MORE COOL FEATURES
Full retina display support for crystal clear graphics.
Also works great on budget devices down to (320x240) resolution.

Rules of the game can be found here:
http://en.wikipedia.org/wiki/Gin_rummy

Please send your comments and suggestions to jjplaycardgames@gmail.com
Additional Scoring Notes:
Knocker receives the difference between the two players count, plus 20 points.
Unlike traditional rules, there is no 100 point bonus for reaching 100 first. Players can leave after each round without penalty.
"Lay off" of unmatched cards is performed automatically.

Playing with Facebook friends:
To play with friends, from the main menu click “Multiplayer” then “Friends”. You will see available Facebook friends on the right side on the screen. Click “Add” to add friends to your game. Both you and your friends need to be in the game to see each other.