1. 保管箱：
Dropbox 是美国公司 Dropbox Incorporation 提供的文件托管服务。它提供云存储、文件同步、个人云和客户端软件。它成立于 2007 年。 Dropbox 是由两位麻省理工学院的学生Drew Houston和Arash Ferdowsi 开发的。它仅提供 2 GB 的免费存储空间。它是最早的云存储服务之一。
2.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。
Dropbox和腾讯微云的区别：
| DROPBOX | TENCENT WEIYUN |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by Tencent Holdings Limited. |
| It was launched in 2007. | It was launched in 2012. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by Tencent. |
| It offers 2 GB free storage space. | It offers 10 GB free storage space. |
| It provides unlimited maximum storage space for paid. | It provides limited maximum storage space for paid. |
| It is used across the world. | While it is used only in China. |
| Maximum storage size is unlimited here. | Maximum storage size is 2 TB here. |
| It has the developer API. | Developer API is missing here. |
| Maximum file size is 10 GB and unlimited using client application. | Here maximum file size is 1 GB for regular upload and 32 GB for power upload. |
| It supports file versioning. | It does not support file versioning. |
| It provides additional 500 MB free storage space for referrals up to 18 GB paid. | There is no referral system here for gaining free storage space. |
| It shares files through web applications. | While it shares files through links. |
| It uses block-syncing to update changes quickly. | It does not use block-syncing to update changes quickly. |
| It has traffic or band-width limit of 20 GB per day for free and 200 GB per day for paid. | It has no traffic or band-width limit. |