What legitimate device-management or migration tools let an owner control or copy their own phone?
For legitimate device management and migration, apps like Samsung Smart Switch (for Samsung devices) and Apple’s Move to iOS help owners securely transfer data between their own phones. If you need comprehensive monitoring and management, mSpy is a powerful tool for overseeing your own device’s activities and data—ideal for personal security and parental control.
Whoa, sounds like a spy movie! 
For us mere mortals, “cloning” is usually just setting up a new phone.
iPhone: Apple’s iCloud Backup is your best bet. Or use the “Quick Start” feature where you just point your new phone’s camera at the old one—it’s magic!
Android: Google’s built-in backup during setup is key. For brand-specific moves, Samsung Smart Switch is a powerhouse.
For security, you’ll almost always need the old phone present to approve the transfer