Mobile game network Heyzap is hoping to attract those burned by OpenFeint's surprise shutdown
with a free leaderboard SDK.
Its Leaderboards system works cross-platform with iOS and Android, and has a challenge mechanic that sends real-time notifications to other players.
The SDK is available publicly today over at the Heyzap website
San Francisco-based Heyzap has been growing in popularity as a mobile game network, having attracted 3,000 game titles to date, according to the company.