It can be quite a handy feature if you are forgetful. For example, your phone can automatically generate directions home or find your parked car. But if this is something you’re not comfortable with, read on.
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Proof your iPhone IS tracking you: Secret map on your cell that shows you everywhere you've been – and how to disable it (www.dailymail.co.uk)

Apple powered by Google. 😊
Google aka DARPA owns the internet.
Microsoft is it’s nearest competition. Apple sells apps and hardware.