Call Blocker : robocall blocker, spam call blocker can reject unwanted or spam calls and messages automatically. If you have been annoyed by spam call’s, or if you want to reject calls from anyone, you can just add the number to blacklist, manually or from contact’s list and let Call Blocker and SMS Blocker do the job. This app is light and stable, memory and CPU resources cost are very little. BLOCKING: Using the options of this tab, you can block calls from private, unknown or all numbers.