Instagram’s security will instantly flag a new login and send them a verification code, so most “stealth login” apps out there are just sketchy downloads or outright scams. You’ll need about ten minutes of physical phone access to set up Meta’s native Family Center or a reputable parental control app, and even those usually leave a small “device managed” badge on the screen. Skip the spyware hype and just use the built-in supervision tools—they’re boring, but they actually work without trying to outsmart modern mobile security.