1. Ubuntu One：
Ubuntu One是由Canonical Limited提供的文件托管服务，文件同步服务和云服务。这是一个基于OpenID的单点登录服务。它提供了用于在云上存储文件以及从云流式传输音乐的服务。它由Canonical Ltd.开发。适用于Windows，OS X，iOS，Ubuntu和Android。它提供了5 GB的可用存储空间。它于2009年推出。
2.共享文件：
ShareFile是Citrix Systems提供的文件同步服务，文件共享服务和基于云的文件存储服务。这是一种安全的内容协作，支持以文档为中心的任务。它提供基于云的存储，虚拟数据室和客户端门户。它由Jesse Lipson开发。它适用于Windows，macOS，iOS和Android。它不提供免费的存储空间。它于2005年推出。
Ubuntu One和ShareFile之间的区别：
| UBUNTU ONE | SHAREFILE |
|---|---|
| It was owned by Canonical Limited. | It is owned by Citrix Systems. |
| It was launched in 2009. | It was launched in 2005. |
| It offered 5 GB free storage space. | It offers 30 days free trial with maximum storage size 10 GB. |
| It was developed by Canonical Ltd. | It was developed by Jesse Lipson. |
| It had the unlimited maximum storage size. | Maximum storage size is unlimited here also. |
| It was a file hosting and commercial file synchronization service. | It is a commercial file sharing and file synchronization service. |
| Maximum file size was 5 GB per file. | Maximum file size is 10 GB to 100 GB according to plans. |
| This service was suspended in 2014. | It is still in use. |
| It was supported by Windows, OS X, Ubuntu, iOS and Android. | It is supported by Windows, OS X, Android and iOS. |