Most successful apps are spread through a few users; these users install the app, and then they tell their friends about it, and they tell their friends, and so on and so on. MySpace and OpenSocial have four built-in viral features designed to speed up and improve that process:
These four features make up the communication components that will help you spread your app virally. If you’d like to learn more about actually marketing and growing an app, see Chapter 14, Marketing and Monetizing.
In this chapter we’ll cover each of these four viral features in detail, using examples ...