1. 保管箱：
Dropbox 是美国公司 Dropbox Incorporation 提供的文件托管服务。它提供云存储、文件同步、个人云和客户端软件。它成立于 2007 年。 Dropbox 是由两位麻省理工学院的学生Drew Houston和Arash Ferdowsi 开发的。它仅提供 2 GB 的免费存储空间。它是最早的云存储服务之一。
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。它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、虚拟数据室和客户门户。它是由Jesse Lipson开发的。它适用于 Windows、macOS、iOS 和 Android。它不提供免费存储空间。它于2005年推出。
Dropbox 和 ShareFile 的区别：
| DROPBOX | SHAREFILE |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by Citrix Systems. |
| It was launched in 2007. | It was launched in 2005. |
| It offers 2 GB free storage space. | It offers 30 days free trial with maximum storage size 10 GB. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by Jesse Lipson. |
| It has the unlimited maximum storage size. | Maximum storage size is unlimited here. |
| It is a file hosting, file synchronization and cloud storage service. | It is a commercial file sharing and file synchronization service. |
| Maximum file size is 10 GB and unlimited using client application. | Maximum file size is 10 GB to 100 GB according to plans. |
| It is used to store personal and professional data both. | It is used for storing small and large business related data. |
| It is supported by Windows, OS X, Linux, Android, BlackBerry and iOS. | It is supported by Windows, macOS, iOS and Android operating systems. |
| It provides additional 500 MB free storage space for referral up to 18 GB. | It does not have referral system. |
| It shares files through web applications. | While it shares files through links. |
| It uses block-syncing to update changes quickly. | It does not use block-syncing to update changes quickly. |