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.云我：
CloudMe 是 CloudMe AB 提供的文件存储服务。它提供文件同步、云存储和客户端软件。它由Daniel Arthursson于 2011 年创立。最初它被命名为 iCloud，但后来 Apple 收购了这个名字。它提供 3 GB 的免费存储空间。它为高级帐户提供有限的存储空间。它最大的竞争对手是 Dropbox。
Dropbox 和 CloudMe 的区别：
| DROPBOX | CLOUDME |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by CloudMe AB. |
| It was launched in 2007. | It was launched in 2011. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by Daniel Arthursson. |
| It offers 2 GB free storage space. | It offers 3 GB free storage space. |
| It supports less types of file formats. | It supports more types of file formats. |
| It provides 2 TB maximum storage space for free and unlimited storage space for paid. | Maximum storage size is 500 GB for paid here. |
| It supports file versioning. | It rarely supports file versioning. |
| Maximum file size here is 10 GB and unlimited for paid. | Here maximum file size is 150 MB for free and unlimited for premium accounts. |
| It does not support remote uploading. | It also does not support remote uploading. |
| It uses block-syncing to update changes quickly. | It does not use block-syncing to update changes quickly. |
| It shares files through web applications. | While it shares files through links. |