Then you have to think about what the message is. Maybe social media isn't about devices but what lifestyle apps you could be using. If I'm looking at health pages, remind people of the new HealthKit. If I'm looking at vacations, remind people of iPhoto for editing those pics. Go for "you could be using Apple here..."
It's still social media.. some idiot's going to comment right below your ad saying something horrible, and totally wasting the value of your ad.
Really, social media is completely inappropriate for branding... you don't want the general public to define your brand - your brand should only be defined by you, not some idiot on Facebook.
The thing about professional media (instead of social media) is that professional editors are much better at building content that enhances associated branding.