I want to delete the Facebook app, but apparently it's needed on iOS for other apps to "Login with Facebook."
So instead, I just leave it installed but with all push-notifications, location-usage, etc. disabled, and then kill it right after I'm done using it to log into something.
So instead, I just leave it installed but with all push-notifications, location-usage, etc. disabled, and then kill it right after I'm done using it to log into something.