Even with the influx of cloud storage options like Apple’s iCloud and Google’s Drive, Dropbox is having continued success adding users, according to the company’s co-founder Drew Houston. Houston took to the company’s blog to boast that Dropbox now has 100 million users, quadrupling in the last year. Speaking to the New York Times, Houston further expressed that he is not worried about the competition that his company has seen. “Those companies are busy trying to build something we had four years ago. We’re out front,” Houston said, “We’re already out there and building smaller features and things. All those other companies have turf to protect, and they’re fighting a battle on a totally different front.”

Apple announced iCloud now boasts 190 million users on its last earnings call, as its integration with iOS helps bring new users. However in comparison, the Galaxy S III (not inside the US) comes with a free Dropbox account loaded with 50GB of storage, along with many HTC devices that come with 25GB — surely driving sales.

The feature set between Dropbox and iCloud is not exactly the same. iCloud offers the same drag-and-drop storage as Dropbox, but it takes some trickery to get it into full swing, while its main feature is how it syncs with different apps. For now, it appears Dropbox and iCloud work well side by side and the amount of users Dropbox has seen may show some truth behind that theory.