We do know that Facebook gave the data away for free to all apps, just like Google's Android. So that "they don't sell your data" is a deluded statement. Maybe

We do know that Facebook gave the data away for free to all apps, just like Google's Android. So that "they don't sell your data" is a deluded statement. Maybe they also sell it (processed into aggregated reports, not raw), I wouldn't be surprised.