Has anyone downloaded TotalAV to protect their privacy?

Apple does not recommend any security apps.

It is not necessary to install security apps on your iPhone.

They actually get in the way of the iPhone's performance.

The chances of your iPhone getting hacked are almost zero.

I'm sure someone has. But, that doesn't make it any more a good idea than taking up smoking because the other kids on the playground are doing it.

The following article is mostly written from a Mac perspective but it contains lots of great advice for how to be safe online and how that doesn't require buying software:

Effective defenses against malware and ot… - Apple Community