IQ Friends is a brain training application that helps the users to improve different areas of the brain while playing games. The application can thus be used both for the fun of playing games as well as for training the brain. IQ Friends differentiates itself from similar applications like Lumosity, by being social. This means that users of the app are challenging each other and thereby get to know each other. IQ Friends had launched an IQ test before its IQ training, and was able to get more than 3 million people to finish the IQ test and leave their email address. This as well as Facebook and Google display ads, viral and app store marketing are the main drivers, IQ Friends aims to grow to over 10 million users.