There are a variety of “free” services and products that we use every day, but are they really “free”? They’re pitched to us as having no cost, but the costs are much more than we may ever realize. There’s an older saying in the tech world that “if the product is free then you are the product.” Companies offer zero-price services to customers but earn a profit by selling data to other companies who would like to know more about you.
Just because a product or service is listed as $0 doesn’t mean there aren’t costs involved. There will always be an opportunity cost associated with the choice to use the service and that cost includes where your data and privacy end up.