The Call and SMS blocker is one of the effective apps which help you to block the unwanted calls and SMS. It is easy to use and protects you from unwanted calls. You can blacklist the messages and numbers that you do not want to answer. It is flexible to use in a way that at different point of time you can add different numbers and avoid messages that you do not want to receive. with the increase in the spam numbers it has become essential to have one such app so that the phones doo not get stocked up with the unnecessary and non-useful messages.