1.亚马逊驱动器：
Amazon Drive 是 Amazon 提供的文件托管服务和云存储。它允许云存储、文件托管、文件共享和文件备份。此驱动器上的文件和文件夹可以从台式机、手机和平板电脑等多种设备传输。 Amazon Drive 最初被称为 Amazon Cloud Drive。它在世界范围内不可用。它适用于某些选定的国家/地区。它于2011年推出。
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。
Amazon Drive 和 Ubuntu One 的区别：
| AMAZON DRIVE | UBUNTU ONE |
|---|---|
| It is owned by Amazon. | It was owned by Canonical Limited. |
| It was launched in 2011. | It was launched in 2009. |
| It offers 5 GB free storage space. | It also offered 5 GB free storage space. |
| It was developed by Amazon. | It was developed by Canonical Ltd. |
| It has the maximum storage size of 30 TB. | Maximum storage size was unlimited here. |
| It is used in all countries excluding Mexico and China. | While it was used world wide. |
| It is still in use. | This service was suspended in 2014. |
| It is used to store photos specifically. | It was used to store all types of files. |
| Files stored here are encrypted. | Files stored in Ubuntu One were not encrypted. |
| Maximum file size is 2 GB upload via web and 50 GB upload via drive application. | Maximum file size was 5 GB per file. |
| It is a file hosting and cloud storage service. | It was a commercial file synchronization service. |