Call Blocker – Block Numbers is a free call blocker app for Android that lets you block unwanted calls, including spam, unwanted, and unwanted commercial calls. This application is useful to stop calls from telemarketers, advertisers, and other people who may be trying to contact you and steal your privacy.

The application is very simple and easy to use. You just need to add the number you want to block to your blacklist and the number will be blocked forever. The blacklist can be accessed from the settings screen.

It is very easy to use and can be used by anyone, even if they don't have the app. All you need to do is to add the number you want to block to your blacklist.