A number of data sources—like your phone number, linked accounts, browsing history, your demographics, and even who you’re standing near—create such an accurate portrait of you that it’s like your phone is “spying” on you to deliver hyper-targeted ads.
Privacy laws require websites to disclose what information they collect. Depending on where you live and what the laws are, privacy laws can range from cookie banners to deleting and amending our digital data.
Your location information enables apps to do a lot of neat things. It can also be a sensitive piece of information, which is why your phone doesn't give access to it without your consent. Overall that's a very good thing, but it means the onus is on you to decide: should you say yes when an app asks to use your location?
Your phone apps collect data through a single location data point (once), a one-off trace (when you’re using an app), or all the time through persistent location tracking. Your phone is piecing together a story about you and your habits every time you location-share.