*** Note that there is also a free version of Chess By Post that is ad supported. This paid version does not have any in game ads ***Now available for iPhones too! Tell your friends!
Chess By Post is the only cross platform chess app that keeps track of your skill level and always matches you against players of similar ability to your own. And since it is available for Android, iPhone, and Windows Phones, your can play your friends no matter what type of phone they have!
Play correspondence chess with real people online! Challenge your friends to friendly games or play ranked matches against random opponents of similar skill levels. Play as many simultaneous games as you want!
Use the move planner to freely move pieces and try out different strategies to see how the game might unfold.
Take notes about games to remember your strategies.
Export finished games to PGN format.
Chat with your opponents using the in-game message board.
Improve your ranking by playing ranked games against comparable opponents. Skill ranking updates using the classic Elo rating system to adjust your rank when you win or lose. A leaderboard view shows you how you compare to the top players.
Tap on your opponent's name to see your all-time head-to-head record against them.
Facebook integration - use Facebook to challenge your friends to a game
Chess By Post is perfect for players of all skill levels because your opponent's skill level will be adapted based on your own skill level over time.