Apple's app requires you to scan manually, it doesn't warn you if you're being stalked. You'll need something like Air Guard to get similar notifications.

That is good that they made it, but the fact that you need to install some app for something that you do not use, seems to me like opt-out tracking?

The app is stop gap at best - it has to be run manually, the screen has to be on, and it chews batteries (due to phone architectural designs)

which currently has a rating of 2/5 because of how terrible it is.

Did you read the reviews ? Maybe because the bad guys do not want you to use it. You need to underestand that there are a lot of people paid to have an opinion on the internet.

Some of the (dumb) reviews don't change the fact that Apple's app requires you to perform manual scans and doesn't alert you if you're being tracked. Only iPhones do that.

If that was the case why don't the non-Apple apps have the same problem then?