Zedairder Said:
"You can absolutely get viruses on iPhone. It’s just that it is very unlikely that by following that link you got a virus."
-------
Viruses on an iPhone:
You're not going get a virus on your iPhone. If anything of suspicion, it is that is has been hacked (IOW: Jailbroken):
Securing your iPhone:
A. About a Hacked iPhone:
Unfortunately, there is no way to determine if it has been hacked, unless you know that it has been jailbroken. And, the only way for an iPhone to have hacked is if it has been jailbroken.
So, what to do...
B. Reset your iPhone to Factory Settings:
Having tampered with this app, then reset you iPhone to factory settings, as if you were to sell it. Go here: What to do Before you Sell, Give Away, or Trade in your iPhone, iPad, or iPod touch - Apple Support. Perform as instructed there, including the backup creation and iCloud logout.