1.腾讯微云：
腾讯微云是腾讯控股有限公司提供的文件托管服务和云存储服务。它有英文和中文两种语言版本。它主要用于中国等国家。它由腾讯控股有限公司于 2012 年推出。它提供 10 GB 的免费存储空间。它为付费用户提供有限的存储空间。此处的最大存储大小为 2 TB。
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。
腾讯微云与Ubuntu One的区别：
| TENCENT WEIYUN | UBUNTU ONE |
|---|---|
| It is owned by Tencent Holdings Limited. | It was owned by Canonical Limited. |
| It was launched in 2012. | It was launched in 2009. |
| It offers 10 GB free storage space. | It offered 5 GB free storage space. |
| It was developed by Tencent. | It was developed by Canonical Ltd. |
| Maximum storage size is 2 TB here. | 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 1 GB for regular upload and 32 GB for power upload. | Maximum file size was 5 GB per file. |
| It is a file hosting and cloud storage service. | It was a commercial file synchronization service. |
| It is used in China only. | While it was used world wide. |
| It has no traffic or band-width limit. | It has Amazon S3 limits as traffic or band-width limit. |