CallApp: Caller ID, Call Blocker & Call Recorder

Knowing who's calling can be difficult if you don't have the number saved in Contacts. There are other ways of finding out who's calling you, and that can be done by expanding the Contacts database with the social media accounts.
Also, with the help of Caller ID & Block, users will find that it's really east to block certain numbers, from either texting or calling you. Blocking scammers, telemarketers and spam calls can be done with a single tap.
The application also comes with its own database of numbers, which means that the chance of finding out who's calling are pretty high.