Third party leaderboards and achievements for android and ios

I want to integrate a third party sdk in my games to use leaderborads and achievements. (I don’t want to use GameCenter or GooglePlayGameServices)

I want to know people that already integrated that services in their games and if the experience is good or not.

I only know Scoreloop.

You can try App42 from Shephertz. They have very great support on cocos2dX and a separate SDK written in C++. You can have a look on their App42Cocos2dxSample and documentations. They have comprehensive set of APIs to serve almost all kind of needs related to Social Leaderboard, Achievement and a lot more. You may get all your requirement with a better support.