If you’re concerned about your privacy, you may want to check your iPhone activity log. This is a list of all the apps that have been used on your iPhone, as well as the time and date of each interaction. To view your iPhone activity log:

  1. Open the Settings app on your iPhone.
  2. Tap Privacy.
  3. Under “Activity Log,” tap the button to turn it on.
  4. Enter your passcode if prompted to do so, and then tap OK to confirm that you want to view the log.
  5. To see a list of all the apps that have been used on your iPhone, scroll down and tap App Usage History. To see a list of all the interactions for each app, scroll down and tap App Details (or just press on an app name). ..