OpenFeint is described as 'addon prepackaged in many iOS and Android games, that allows you to earn rewards and achievements, play with friends, challenge high-scorers, and build your own'. There are four alternatives to OpenFeint for iPhone, the Web, Mac, Android and iPad. The best alternative is Game Center, which is free. Other great apps like OpenFeint are Clay.io (Free), Scoreoid (Paid) and Plus+ (Free).
- 4 alternatives