Even with Facebook closed on my phone, the social network gets notified when I use the Peet’s Coffee app. Rivals such as Google don’t offer anything comparable to the “Off-Facebook Activity” page. The social network provides partners tracking software they embed in apps, websites, loyalty cards and other systems. ADYour off-Facebook activity isn’t exposed to your friends; they won’t see it in the News Feed. (Off-Facebook activity doesn’t contribute to Facebook’s dossier of your ad “interests,” but the social network might use it to suggest groups, events or Marketplace items to buy.)
Source: Washington Post January 28, 2020 12:01 UTC