Another feature seen on a lot of android security apps is "Call/SMS blocking/filtering". This feature allows people to block texts (SMS) and calls from numbers in their block list.
A thing to keep in mind is that a lot of phones these days come with call blocking built in, but not all phones do. Older devices for example may not have it built in, so this feature would be handy to those users with older or certain phones without the built in feature.
