It’s part of most apps you use on your phone - Facebook is great for app download campaigns and adding the SDK means end to end visibility on marketing. So “everyone” is using it.
In an abstract sense this is similar to how Facebook (ab)used the like button on 3rd party sites to track anyone using that site. Only it’s much worse because with an app SDK they have access to much more sensitive data.
In an abstract sense this is similar to how Facebook (ab)used the like button on 3rd party sites to track anyone using that site. Only it’s much worse because with an app SDK they have access to much more sensitive data.