CallHero is very one-dimensional and provides little in the way of customizability. RoboKiller, on the other hand, allows users to build personal block and allow lists, decide whether to screen all calls or automatically block known scammers, and much more.

Like most spam blockers, CallHero simply blocks calls from phone numbers on a block list—the problem is,scammers can just change numbers to get around that. RoboKiller, on the other hand, uses machine learning to detect scammers based on their unique audio fingerprints. Scammers may change their numbers, but they can’t change their voices.

CallHero offers SMS protection, but it can’t keep up with spammers like RoboKiller can. Our spam text blocking is 99% effective at identifying and shutting down text scams.

Some robocallers imitate local phone numbers so you’re more likely to answer them. Unlike CallHero, RoboKiller knows how to identify and stop these sneaky spam calls before they reach you.

RoboKiller doesn’t just block robocalls—we make it fun. Answer Bots intercept incoming spam calls and mimic a real person to waste telemarketers’ time. You can even listen to the recordings. It’s a little poetic justice (and bonus entertainment) that CallHero just can’t offer.