In terms of call blocking, RealCall relies on Verification Code Identification which is not supported by Hiya that works traditionally based on data-based blocking alone, which means blocking is based on historical record on numbers and users have no knowlege when a call is blocked. RealCall has a database with more than 200 million spam numbers while that of Hiya 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 supported by RealCall allows its users to block real spam calls, letting go of legitimate calls from government, official banks or hospitals, which is not supported by Hiya that possibly blocks both legitimate calls and spam calls.
As RealCall is compared with Hiya, a necessary feature owned by RealCall but unsupported by Hiya is text message blocking. All spam SMS messages are blocked by RealCall based on machine learning enabling SMS blocking success rate to go contantly high, custom blocking rules allowing users to set up their blocking rules and Fraud SMS Detection helping users to directly filter fraud SMS.
Compared with Hiya, 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.