Hello is an app that lets you see all the information about the numbers which you are calling. The Hello app is an app from Facebook.

The Hello app is an excellent extension to the app that comes with your Android device. You can get the information about who is calling you even if you don't have their number in your phone. You can block specific phone numbers and stop private numbers from calling also.

If people have their phone numbers on Facebook, the Hello app will allow you to see all the information related to that number. The process of getting this app is simple, fast, and easy to use.