Although it's a bit of a niche app, CloudApp is great for sharing files and screenshots on your computer but if you're looking for something that integrates with your BlackBerry 10 device there is now a solution. Cloudee for BlackBerry 10 has been released by Kisai Labs and and offers a native experience for CloudApp. Although it won't replace Box or Dropbox for you, it does have plenty of uses.
Again, it's not something everyone is going to need in their life but if you're already using CloudApp and a BlackBerry 10 device, it's great to have an app for it. Cloudee is a paid app priced at $1.99 and is available for all BlackBerry 10 devices running BlackBerry 10.2.1. If you're looking for more details, hit the link below.