Delete photo & video based on a timer

Learn how to write the code that downloads and displays messages, photos, and videos that timeout after a few seconds. Then create the code that deletes them from the back-end to make them "self destruct."

Build an easily managed friends list

Learn what offers as a "backend-as-a-service" platform. Explore the user account management APIs provided by and write the code to create and save a new user in a data store.

Store & retrieve data using cloud servers

We'll teach you how to upload images, video files, and messages to's cloud servers. Then learn how to retrieve the data by setting up custom queries that download and display them in the app.