Monitor what data your apps are accessing with iOS's built-in privacy auditing tool:

Settings → Privacy & Security → Record App Activity creates a detailed log of all sensor and network activity across your installed apps.

Once enabled, this feature tracks which apps access your camera, microphone, location, contacts, and network connections. After a few days of normal usage, you can export a comprehensive report showing exactly what data each app has requested and when. This transparency tool helps you make informed decisions about app permissions and identify potentially invasive apps.