I learned the hard way that spying on family breaks trust more than it protects them. On non-jailbroken iPhones, WiFi sync options (like mSpy) are usually unreliable and limited by Apple’s protections; full access to calls, texts, and app data often still requires jailbreak or heavy MDM, and updates can break things. If possible, have an open talk and use built-in parental controls instead to set boundaries without eroding trust.