said 8 months, 3 weeks ago:
Well, what you described is in violation of Facebook’s TOS (terms of services). It’s kind of a grey area because doing a check-in in that way doesn’t exactly fit the “rules”. Here’s what Facebook says:
You must not condition registration or entry upon the user taking any action using any Facebook features or functionality other than liking a Page, checking in to a Place, or connecting to your app. For example, you must not condition registration or entry upon the user liking a Wall post, or commenting or uploading a photo on a Wall.iv. You must not use Facebook features or functionality as a promotion’s registration or entry mechanism. For example, the act of liking a Page or checking in to a Place cannot automatically register or enter a promotion participant.
You could try using a promotion app from possibly woobox.com or northsocial.com.