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. 糖同步：
SugarSync 是 J2 Global 提供的云服务和文件同步服务。它可以主动同步计算机系统和其他设备中的文件，以进行备份、访问和共享。它受 Windows、macOS、iOS 和 Android 操作系统支持。它由 J2 Global 于 2009 年推出。它不提供免费存储空间。它为付费用户提供有限和无限的存储空间。
CloudMe 和 SugarSync 的区别：
| CLOUDME | SUGARSYNC |
|---|---|
| It is owned by CloudMe AB. | It is owned by J2 Global. |
| It was launched in 2011. | It was launched in 2009. |
| It was developed by Daniel Arthursson. | It was developed by J2 Global. |
| It offers 3 GB free storage space. | It does not offer free storage space. |
| It provides limited maximum storage space for paid. | It provides limited as well as unlimited maximum storage space for paid. |
| It rarely supports file versioning. | It fully supports file versioning. |
| Developer API is REST, SOAP and WebDAV. | Developer API is REST. |
| Maximum storage size is 500 GB here. | Maximum storage size is 60 GB for personal paid and unlimited for professional paid. |
| It has no traffic or band-width limit. | It has traffic or band-width limit of 10 GB per day for free and 250 GB per day for paid. |
| Maximum file size is 150 MB for free and unlimited for premium accounts. | Here maximum file size is not restricted. |