There are many possible reasons why you may want to know how to track an iPhone location from another iPhone. The first, and the most obvious one, is the case when a phone is lost or stolen. Another case is when a person needs to monitor the location of their family members or friends. Tracking apps can also be used to keep track of partners who are traveling or who may be up to something suspicious. Finally, tracking someone’s location on your iPhone can also be used for safety and security reasons.