6waves is one of the top 5 application developers on Facebook, with over 40 million monthly active users across Asia, Europe, North America and South America. For apps to go viral on Facebook, viral features must be built into the core app design rather than added as an afterthought. The document discusses strategies for optimizing an app's "viral loop" through invitation, notification and news feed channels on Facebook. It also provides recommendations for promotion, such as focusing on demographics and locations that are most engaged, and being among the first apps in a genre to gain network effects through growth.