Dropbox has now received a software update to adopt the Touch ID sensor in the iPhone 5s, iPhone 6 and iPhone 6 Plus for security access, as well as some general improvements.
Other services such as OneDrive have also adopted support for the sensor.
iPhone 6 and iPhone 6 Plus support have been added like Facebook, YouTube, Chrome and other apps such as OneDrive and Skype.
Touch ID support is exclusive to iPhones running iOS 8.