What are some alternatives?
Best Referral Programs - A curated directory of startup referral programs
Giv - Snapchat & Instagram giveaways made easy
Viral Loops for Startups - Virality for startups made easy 💪
Tagwin - Instagram contests & giveaways made easy
GiveYaw - Online giveaways made easy 🎁
Rafflecopter - Rafflecopter is a web app that makes it easy to run a giveaway promotion.