So what is this iVerify app? Just a promise with progress bar?
Discussion
On iOS it literally notifies you instantly when there's a system update rather than waiting longer due to staged rollouts. On Android it scans installed apps for known malicious APK hashes. I think you can also send DNS requests through it via VPN service. Not that useful at all and can be achieved for free via other means (Google Play has Play Protect so it does the same thing), definitely not fighting off Pegasus spyware.