Wikipedia
Gramble
Gramble is a game-focused social entertainment network connecting players, developers, and charities through interactive profiles and a suite of social features. Launched in open beta in April 2013, the network is currently accessible via a mobile version for smartphones and tablets (Gramble.com). Native (downloadable) versions of the Gramble network are also available for iOS and Android. An HTML5-based web version is also in development. Gramble's stated mission is "to improve over one billion lives by changing the way people donate to charity."