This report will show your product’s viral coefficient over time, the percentage of people that invited someone and how long it takes on average for a user to invite someone else, also known as viral cycle time.
When all users bring in on average one other user, your product’s viral coefficient is 1. Anything above 1 will generally lead to exponential growth, while anything less that can still lead to significant growth through mouth-of-mouth. The closer to zero the viral coefficient is, the less likely it is that your product will grow through word-of-mouth, and the more important it is to acquire users from other channels such as organic search, paid search and other campaigns.