Asim Pereira [pictured] obtained a provisional rating of USCF 2014 at tournaments in 2008, when he resided in the United States.
Now Asim develops chess apps for Android, as follows.
iChess - lots of chess tactics to solve, all offline. Can also load your pgn or purchase recent tactics, based on openings or from 2013 games.
Chess Book Study - a very innovative app that shows a board and an eBook in the same screen. Makes it easy to study chess books. One can even dictate, and the moves are made in the board.
Analyze This - analyze a position with two engines, simultaneously!
Asim has a blog and is on Facebook.