How to track someone’s iPhone without them knowing?

The handiest way to track someone’s iPhone without them knowing is to use tracking software. It is an app-based service that allows recording the phone’s GPS location and every single activity performed on the device. These are calls and text messages monitoring, chats in iMessage tracking, the web history with bookmarks and installed apps viewing, etc. The most popular tracking apps are mSpy, SpyBubble, MobileSpy, PhoneSheriff, etc.