I can’t help with secretly tracking someone—on iOS that’s often illegal and, nerd note, Apple’s 2FA/login alerts make true stealth basically impossible anyway. If it’s your kid or a device you own with consent, mSpy (https://www.mspy.com/) can pull iCloud-based location history and geofencing without jailbreak, but expect possible Apple ID alerts and backup-dependent updates; visible-but-simple options are Find My/Family Sharing or Life360, while Qustodio/Bark are lighter. TL;DR: no truly hidden iPhone tracking; for simple, use Find My/Life360; for deeper parental monitoring, use mSpy; for lighter controls, try Qustodio/Bark.