Advanced Sms&Call Blocker - With this app you can Block the Unwanted Call or SMS for the numbers which are added in the list. You can remove the numbers from the Blocklist whenever necessary. When the SMS is sent from the number in the Blocklist, you won't receive any alert or notification. SMS can't be viewed in any means!
You can block the calls from the unknown numbers. You can also define whether the number can appear in the call log!