I use this device with an iPad and Windows Phone. The app for the iPad is not what I expected power. In this version, I can no files on the iPad copy to then send them via e-mail. The guide does not match the version that is available on the App Store. For me, therefore, not be used. Furthermore it takes to load forever. While there is the possibility to make photos available offline but to send them then or to manage - no chance. If the app is improved and additionally mkv can play then I would give 5 stars.
This unit can be operated via the Web browser still, where you can indeed copy individual files but in 1000s makes it no fun.