In terms of call blocking, RealCall relies on Verification Code Identification which is not supported by CallHero that works traditionally based on data-based blocking. RealCall has a database with more than 200 million spam numbers while that of CallHero is unknown, adding uncertainties to the app security. The Verification Code Identification applied by RealCall stops unknown calls from reaching your phone unless they're confirmed by you via a verification code and all the process takes just seconds.
The Custom Blocking Rules philosophy has been used on both call blocking and text message blocking on RealCall. That allows its users to block calls from any channel or with any label and stop any message with certain keywords. The essential benefit of this feature lies in its high flexibility and convenience ensuring all important calls are able to be well received without being interrupted by those that are not expected.
Compared with CallHero, another essential advantage of RealCall lies in its fraud SMS detection feature that is able to detect dangerous text message scams based on machine learning and send alerts to stop users from clicking the link contained in messages or replying to them. Whenever a suspicious text message arrives, it'll be instantly detected by RealCall that will notify you at the first moment.