I read the App Store Review Guidelines especially the 20th clause, however, there are some things that are still vague so if anyone can clear things up for me, that would be great.
1. Is it okay if we let users participate in a survey and in return, give them a chance to win a reward by drawing lots? Of course, before we let users join any surveys, we will properly display the rules, the disclaimer as stated in the guidelines.
2. Is it okay if the rewards mentioned in (1) can be gift certificates or points? Points will be managed and maintained by application developers and not the SDK developer.
Thanks.