displays ads based on the information it collects about you (personal preferences, apps, searches, usage data…), but if you are wary about your privacy then you'll be happy to learn that Apple provides a simple solution to opt-out of interest-based ads.
, head to the Store
menu > Sign-in
and sign in with your Apple ID.
Next, click on the Edit
menu > Preferences
. Tick the Limit Ad Tracking
Click on OK
to apply the new setting and close the Preferences
Please read our How To Limit Ad Tracking on the iPhone