The program is designed to block incoming and outgoing calls. It has the fastest algorithm for blocking calls.
Call Blocker has been checked for viruses and it has been found totally safe. LithiumS is the developer of this application that is related to the Communication category. The average user rating of the app is 3.7.
The most recent update of this application was released on Jul 22, 2019 and Call Blocker has been set up by over 100K users. In-app purchase items and ads can be found in the app. A free .apk file of Call Blocker 3.57 can be downloaded from Droid Informer and you can have a look at users' reviews on this site. Prepare 4 MB of free space on your device for this app setup package and take into account that it works fine on Android 4.0 and higher.
Some users point out that the app possesses such a benefit as a nice interface.