Evernote's growth isn't showing signs of slowing down; the popular note-taking software now has 4 million users.
It was just three and a half months ago when Evernote surpassed 3 million users and less than eight months since it reached 2 million. Evernote used its announcement to show just how quickly the service is taking off. While it took the company 446 days to gain its first million users, its user count jumped from 3 million to 4 million in just 108 days.
Much of this growth has to do with its mobile applications. Many of Evernote's users heavily depend on its iPhone app. According to the company, iPhone usage makes up more than half of mobile platform usage, while Android accounts for 20% and iPad 17%.
Evernote has been keeping busy. Last month, the company launched its own app store, Evernote Trunk. The company also recently upgraded its iPhone app for iOS 4.
What do you think of Evernote's accelerating growth? Will it last?