"Calls Blacklist" can be used as both a call blocker or a SMS filter. You can block unwanted calls and messages from unknown, hidden, anonymous, or unidentified numbers. "Calls blacklist" is the solution to annoying calls, messages, telemarketing spam, and robocalls. It is a lightweight and easy-to-use call blocker that is still very powerful. All you have to do is add the unwanted numbers to your blacklist. The app also offers fully integrated SMS messaging. It is easy to send, receive, and manage SMS. With one app, you can manage SMS messages and block spam. Once you enable SMS blocking, the built-in SMS messaging app will be available. This app allows you to manage all spam numbers and, even more, you can block spammers based on the text of messages. It's easy to save blacklist number to a file and then import them to another device.