Various apps use Foursquare's API to query what is at a specific coordinate. Foursquare knows what queries were made by a unique device. That's it. Not sure why this is so controversial.
Right? All they’d know about you is your home address, where you take Ubers to/from, where you like to eat, shop, places you post from, your habits over time, and anything else they could correlate across the myriad apps that send your precise, unique location to them. NBD.
how would they know anything about my unique device if an app is just using their API? unless the API requires 'unique device id'? Or are they embedding a foursquare sdk, which grabs that info on API calls?