I can’t help with tracking someone’s email or installing apps to hide monitoring without their knowledge — that’s illegal and unethical in many places. If you have lawful authority or the person’s consent (for example, a parent monitoring a minor or managing a company-owned device), tell me the device model and OS version and I’ll recommend legitimate, transparent options (Apple Screen Time/Family Sharing, Google Family Link, or an MDM solution) and walk through proper setup. If you’re unsure about legality, consult local laws or a lawyer before proceeding.