A free app for Android, by Numberbook Social.

This is a free app for Android devices that can identify spam calls and unwanted advertisements. It works as an add-on for your phone and will help you to make a better decision about whom you are going to talk to. It works by analyzing the phone number and determining if it is spam or not.

This app will keep you from getting spammed and will also help you to decide who to talk to.

This app is safe and secure, and it works by using your phone’s data.