DropBox vs JustCloud

Dropbox is a Web-based file hosting service that uses cloud computing to enable users to store and share files and folders with others across the Internet using file synchronization. There are both free and paid services, each with varying options. In comparison to similar services, Dropbox offers a relatively large number of user clients across a variety of desktop and mobile operating systems. DropBox alternatives for enterprise are: Box, Microsoft SharePoint, Office 365.
Professional Cloud Storage from JustCloud is Simple, Fast and Secure. Just Cloud will automatically backup the documents, photos, music and videos stored on your computer, to the cloud so you are never without files again.
Face to face in the news:

2013 - Dropbox launches Business-version to compete with JustCloud

As you probably know, Dropbox already has been offering version for business during two years. But it's name Dropbox for Teams was not solid enough. Any large corporation wouldn't buy a product with such a name. Therefore, they decided to rename it to more serious title - Dropbox for Business. Along with the new name they added the most requested feature (by large companies) - support for Active Directory. This will allow employees to login to the service without having to enter a separate username / password, and administrators will be able to better control employee activities to ensure the security of business data. In addition to Active Directory support, Dropbox added integration with the most popular SSO (Single Sign On) services - OneLogin, Okta, Ping Identity. These services are something like SaaS-version of Active Directory. They allow employees to login to multiple online services and local applications with a single username / password.