First, you access the contest app through a link in a post or a tab at the top of your Facebook page, as ABC15 chose to do:
When an interested person clicks the Facebook tab to enter the contest, they will see the entry form. Since the entry form is run through a third-party app and not directly through Facebook, the data is yours to keep.
This is where an app gets really cool. You can leverage the power of referral features – you can see below that folks are encouraged to share it with their friends to get more entires, propelling your contest to go viral and tapping into a whole new universe of potential fans.
Now that you have a sense of what a contest run through a third-party app actually looks like, check out why a third-party app gives you such an advantage when you run Facebook contests.