How can you remove adware or viruses on your iPhone?

Do you have to take it to an Apple shop to have the iOS operating system reinstalled?

Or could you do it yourself?

Or could you use an Anti-virus software to remove the virus (without having to restore the factory settings)?

No viruses currently affect iOS.

Re install IOS.

IPhones don't have anti malware software

If you feel that you have malware on your iOS device then the best thing to do is restore your iOS device. This can be done by you at home