Build A Cross-Platform Simple Social Networking App

Note: It's super easy, so Need to be completed within some hours of awarding the project. I want a social networking App. Basically, with only a Wall where any of the app user can post and that post is visible to all other users of the app. (Don't need friends/ followers or other relationship) It's so simple because any user can post and all going to see that on the feed. [login to view URL] has been shut down so choose another good backend service. The App should be cross-platform. But it's OK if you make it only for Android. (It's also good to start). So what are you waiting for? Start Bidding Amigo!