/challenges-projects/design-challenges/designforacause/b/blog/posts/blowing-whistle-as-controller-bwac------build-android-app-for-pubnub-service-71. The pubnub service features full SDK support with over 70 platform and programming language. That gives more choice for developers for creative. In fact, the free network service always means more payment sacrificing better performance or leakage en-USTelligent Community 12