Unlike AT&T Call Protect, RealCall's spam database is updated all the time, which has billion known spam numbers. You can search any phone number to view details, like number security, owner's carrier or address, etc. RealCall also faces all the users around the world, especially in the US. However, AT&T Call Protect only supports users who use AT&T's network.
On RealCall, Answer Bots can mimic any voices to talk with annoying telemarketers. But AT&T Call Protect can't do that. Besides pre-recording audio files available, it also allows you to customize your own. So you don't need to waste words and time to trick spammers. Let RealCall teach them a lesson!
In addition to blocking spam calls, RealCall can detect fraud text messages or custom keywords based on Machine Learning technology. Scammers may occasionally get through the call blocking, but they can't get out of Fraud SMS Detection. AT&T Call Protect doesn't have that feature.
I have two other apps: iPhone block list and Verizon call filter. This picks up the strays that come through my phone. I'm tickled pink with customized bot outgoing messages!
Keep doing what I paid for you to do. Works great for me and my requirements for phone protection against Spammers, Scanners and Unwanted calls. Chocolate
Saves immense time by blocking numerous robo calls daily and keeps excellent records of activity including recording of messages. Love this app.