First and foremost, iVerify is a security scanner that makes sure you are making use of the basic security features such as Face/Touch ID, Screen Lock, and are running the latest iOS version. It also runs a device scan that looks for security anomalies and gives you a heads up if something seems out of place.
It can be very hard to spot if an iPhone has been hacked, so having a tool installed that keeps an eye out for the telltale signs of intrusion offers piece of mind.
iVerify is also packed with guides that looks at the many different security features built into iOS, and how you can take advantage of them to secure your iPhone (or iPad).
There's also a whole raft of other cool stuff, from information on securing your Apple, Facebook, Google, Instagram, Linkedin, and Twitter accounts, information on activating DNS over HTTPS, a periodic reboot reminder (a simple way to protect yourself from remote exploits), and even a page that offers the latest security news.