Malware Bytes performance on iPhone

There's no reason to pay for Malwarebytes on any Apple device.

See: Effective defenses against malware and ot… - Apple Community

Generally yes Malware Bytes is not absolutely necessary assuming the user uses a bit of common sense such as:

• Not using a Torrent to download software that was not paid for.
• Downloading anything from a site that is not trustworthy.
• Succumbing to scams such as phony tech support phone calls, e-mails, texts.
• Visiting web sites that is not trust worthy
• There are many other foolish things users can do to fall for downloading malware, use the rule "If it sounds too good to be true then it is!"

However that being said, Malwarebytes is safe and if you do find yourself with malware it can remove it.

And due to how iOS is designed, there is absolutely no need for any anti-malware software on an iPhone or iPad. Any such software is going to be completely ineffective due to the same structure that makes it quite difficult for malware to infect your device.

Regards.

Not as much as on an iPhone which has things much more locked down (though the EU and some other countries are making this less the case), but I've been using Macs since 1984 and have never contracted any malware so have felt no need to have any sort of antivirus other than running Malwarebytes from time to time just to check to make sure I haven't let any adware sneak in or, back when I was working with and supporting Windows users, to make sure I wasn't inadvertently forwarding any Windows malware. If you practice "safe computing", there should be no need for anything else.

For one fellow user's suggestions, see:

Effective defenses against malware and ot… - Apple Community

Regards.

You're welcome.