We also included Dropbox in this recap because it is another company that has gained notoriety for its innovative growth hacks. By rewarding existing users with extra free space if they connect their Dropbox account to Twitter and Facebook and spread the word about Dropbox, Dropbox has gamified its onboarding process. That was a no-cost strategy for rapidly expanding your user base.
People were motivated to start using Dropbox because of the rewards offered for completing tasks like file sharing. There are now 500 million people using Dropbox, proving that the growth hack was successful.