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Heyzap, operator of a social mobile gaming network, has unveiled a list of 12 mobile gaming leaders that are partnering with it to promote mobile games.

The partners include Spacetime Studios, Nubee, PocketGems, Bionic Panda Games, Magma Mobile, GameDuell, Digital Chocolate, Animoca, Fluik, Get Set Games, the BBC, and Vostu. All of the companies have integrated Heyzap’s free software development kit (SDK) into their games so that users can share their own gaming activity and achievements with their friends by “checking in” to games. About 3.6 million users have downloaded Heyzap’s mobile game check-in app on smartphones, said Jude Gomila, co-founder of Heyzap.

The companies hope to boost the number of users who install their games. It works like this. A user checks into a game. One of that user’s friends sees that happen via a notification on his or her smartphone. The friend can then click on the game icon and check it out or install it. It’s a social discovery tool that can make a game more viral.

“Heyzap was easy to integrate and a good way to boost installs,” says Andy Smith, Production manager at Get Set Games.

PocketGems also said the integration was simple and it worked well within minutes. Digital Chocolate praised Heyzap’s flexible user interface and high traffic volume for driving new users to Millionaire City.

“Heyzap provides the best UI in the space and was able to generate noticeable lift,” said Jason Loia, Digital Chocolate’s chief operating officer.

These developers are 1 percent of Heyzap’s total developer base, which includes 800 more game makers.

Nubee uses Heyzap’s social analytics dashboard so the company can track statistics like check-ins and Facebook shares for each game. Users can download the Heyzap app for iOS or Android.

Developers can also take full advantage of the Heyzap app, which increases user engagement and retention with social features like live chat, tips, and badges. Heyzap is based in San Francisco and has raised $3.6 million from Union Square Ventures, Chris Dixon, and Naval Ravikant.

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