Apple has been collecting location data from users for a while now, and with that, it's extremely easy for anyone to know where you are or where you've been. There's a super creepy hidden map hidden in your Settings menu that pins down every location you've ever visited, when, and how often.
Apple buried this feature pretty deep.
Here's how you can get to it:
Step 1: From the main Settings menu, select Privacy
Step 2: Select Location Services
Step 3: Scroll aaaalll the way down to the bottom to System Services
Step 4: Scroll about 3/4 of the way down to Frequent Locations.
Note: This is where you turn the feature off, which you’ll probably want to.
It shows you the major cities or towns you've most recently been to.
It even has details on exactly where you've been in the area.
Apple says there's no reason to fear because your data is "kept solely on your device and won't be sent to Apple without your consent."
Still, you might want to turn it off.