If you want to block unwanted callers or Messages this is a best way to do it. All you have to do is add number to app’s Block List. From that point app will deal with your unwanted callers and It will block all the calls from them. As well as SMS messages
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Blackmart pro Free
Blackmart - an alternative market. The point of the program is that you can download and install pai
Cell Phone Spy Pro Free
With Cell Phone Tracker you can track targeted smartphones, spy on SMS, contacts, calls!
System App Remover No Root Free
System app remover is a great tool for removing or managing Android system apps.