Call Blocker - Blacklist is a useful Android application developed by Biometric Solution. It is a free utility tool that helps users block unwanted calls from any number they choose. The app is simple and easy to use, making it accessible to anyone who needs to block calls from strangers or contacts.

To block unwanted calls, users can add any number to the Blacklist or choose a contact from their phone. Once a number is added, any call initiated from that number will be blocked immediately. The caller will not know that they are being blocked, only that the user is unavailable.

The app's main features include the ability to add any number to the Blacklist, block calls from strangers, and get numbers from contacts or enter them manually. With Call Blocker - Blacklist, users can effectively manage their incoming calls and avoid unwanted interruptions.

Overall, Call Blocker - Blacklist is a great app for anyone who wants to take control of their phone calls and have peace of mind knowing that unwanted calls will no longer be a problem.