1.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。
2.泽塔：
Zetta 是由 Zetta Incorporation 提供的文件同步服务和基于云的备份存储服务。它由Jeff Whitehead 、 Lou Montulli和Jason Harrison 开发。它主要用于中小型企业和企业。它不提供免费软件版本。它主要用于存储专业数据而不是个人数据。它于2008年推出。
CloudMe 和 Zetta 的区别：
| CLOUDME | ZETTA |
|---|---|
| It is owned by CloudME AB. | It is owned by Zetta Incorporation. |
| It was launched in 2011. | It was launched in 2008. |
| It offers 3 GB free storage space. | It does not offer freeware service. |
| It was developed by Daniel Arthursson. | It was developed by Jeff Whitehead, Lou Montulli and Jason Harrison. |
| It is a file hosting and file synchronization service. | It is a file synchronization service. |
| It provides cloud storage service. | It provides cloud based backup service. |
| It is used by individuals, small and larger enterprises. | It is used by small and medium sized enterprises. |
| It does not provide LAN synchronization. | It provides LAN synchronization. |
| It provides storage service for personal data. | It does not provide service for personal data and is used for professional work only. |
| It supports file versioning. | It does not support file versioning. |
| It has freeware version. | It does not have freeware version. |
| It is supported by Windows, OS X, Linux, iOS and Android. | It is supported by Windows, OS X and Linux. |
| It does not have revision control. | It has revision control. |
| It does not have detect move. | It has detect move. |