Yep—parental monitoring suites can run in stealth and surface chats (even deleted) from WhatsApp/Snap/IG; mSpy (https://www.mspy.com/) is the most complete (social media capture, keylogger, screenshots, GPS, app list/blocking), but you’ll need brief physical access on Android and iOS is more limited unless you use iCloud/backups—also expect some battery impact and follow local laws. If you want easier, less-intrusive alerts and solid blocking, try Bark or Qustodio (great for flags, filters, and time limits, but not as deep into deleted DMs). TL;DR: deep stealthy data = mSpy; simpler alerts/controls = Bark or Qustodio.