Popular (and competing) cloud sharing services CloudApp and Droplr both announced big updates to their Mac apps this week with new features and designs.

CloudApp 2.0 (seen above) now features thumbnail previews, the ability to share links before an upload is complete, Notification Center support, hot key support to open the menu bar popover, and a lot more

The update resembles many of Dropbox’s recent features including screenshot uploads as the cloud service competition continues.

Like Dropbox and CloudApp, Droplr also redesigned its Mac app (as well as its pricing structure) and added thumbnail previews. It’s new version features inline link name editing and a new window for browsing all your files.

The new CloudApp is available now on the Mac App Store today, and the Droplr update should hit the Mac App Store soon