Wohhh! I stumbled upon this great tech! it lets you to create a Realtime Database. I’ve also create my own app displaying a simple Hello World! you can view it here Firebase-App as you can see it may take some time for the data to load as it connects to your Firebase Database.
Why build an app using Firebase?
If you are trying to create a simple website or mobile application and you do not want to host and setup a MySQL or any other database for it you can choose firebase.
For more information about how to integrate your application with Firebase visit Google Firebase