The more likely way someone can spy on another is if they have access to their appleID. It can install apps randomly from random places.

ALL apps go through the Apple App Store and are checked and verified by Apple. Other than a profile, there is no way for any malicious app to be installed on an iPhone. If it is her personal phone that she paid for, there should not be a profile installed. If there is a profile installed, it would be listed there. To check to see if there is a profile installed on any iPhone, go to Settings/General/VPN and Device Management. A profile can, however be used for malicious purposes as well. A profile that lives on the phone will give that ability. For example, a person works for Wells Fargo and that bank decides to send a new app out to all the employees that have been issued phones. A profile is a file that can be installed on a phone that gives industries like banking, medical, etc… the ability to monitor and control the phone over the internet. If the phone has no profile installed, it’s clean. All you’re really looking for is what’s called a “profile”. Has she considered just going over to either Apple store and have them take a look real quick.

She doesn’t feel comfortable using her phone. My friend believe her phone has spy ware and needs assistance.

FinePrint 11.40 for apple instal