How to create Facebook contest on mobile?

Which is the best Facebook contest app that could support viral loop functionality?

• We want to create a facebook contest (prize: electric scooter). People should obtain a lottery ticket. Their winning chances should increase if they share their ticket and it gets liked/shared.

• Answer:

  Antavo (http://www.antavo.com/) is one of the bests Facebook contest apps. We worked a lot on making the apps viral, in order to decrease advertising costs. The viral loop is the shortest possible and the subscribers receive reminders. Details: 1. Built-in sharing options:  the subscribers can share the promotion on their social media channels and in emails. 2. Lucky link: the subscribers get their lucky links in emails. If they share these links and others subscribe from them, then they will be rewarded and have a better chance of winning and in auto-messages they are notified on how many people subscribe from their link. 3.Sharing for bonus points: when someone enters from the subscriber’s shared link he/she will get extra bonus points – this increases their chance of winning. 4. Auto-posting to Facebook walls: when someone enters the promotion, a post will appear on their friends’ News Feeds, presenting you with the opportunity to reach them. You can read http://antavo.com/en/success-stories here on how other brands, like Samsung, The Entertainer and KS Mobile used these function successfully.   Antavo has a trial and plans start at $25.