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. Ubuntu 一：
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。它提供了在云上存储文件以及从云中传输音乐的服务。它由 Canonical Ltd 开发，适用于 Windows、OS X、iOS、Ubuntu 和 Android。它提供了 5 GB 的免费存储空间。它于2009年推出。
CloudMe 和 Ubuntu One 的区别：
| CLOUDME | UBUNTU ONE |
|---|---|
| It is owned by CloudMe AB. | It was owned by Canonical Limited. |
| It was launched in 2011. | It was launched in 2009. |
| It offers 3 GB free storage space. | It offered 5 GB free storage space. |
| It was developed by Daniel Arthursson. | It was developed by Canonical Ltd. |
| It has the maximum storage size of 500 GB. | Maximum storage size was unlimited here. |
| It is still in use. | This service was suspended in 2014. |
| Files stored here are encrypted. | Files stored in Ubuntu One were not encrypted. |
| Maximum file size is 150 MB for free and unlimited for premium accounts. | Maximum file size was 5 GB per file. |
| It is a file hosting, file synchronization and cloud storage service. | It was a commercial file synchronization service. |
| It has no traffic or band-width limit. | It has Amazon S3 limits as traffic or band-width limit. |
| It supports Windows, OS X, Linux, iOS and Android. | It supported Windows, OS X, iOS, Ubuntu and Android. |
| It has limited freeware version. | It had freeware version. |
| It provides additional 500 MB free storage space for referral up to 16 GB. | It did not have referral system for gaining free additional storage space. |