Dropbox 3 gets an iOS 7 facelift and AirDrop file sharing support
The version 3.0 update also improved PDF support, made it easier to save videos to user's Library, improved file sharing and export support, improved overall performance, and more. Dropbox 3.0 for the iPhone, iPad, and iPod touch is free and requires a Dropbox account. It's available at Apple's iTunes-based App Store.