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. OneDrive：
OneDrive 或 Microsoft OneDrive 是 Microsoft 提供的文件托管和同步服务。它为用户存储文件、个人数据和共享文件提供了便利。它提供 5 GB 的免费存储空间。它由微软于 2007 年推出，主要供专业工作者使用，用于存储可能需要更高安全性的工作相关数据。
Dropbox 和 OneDrive 的区别：
| DROPBOX | ONEDRIVE |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by Microsoft Corporation. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by Microsoft. |
| It was launched in June 2007. | It was launched in August 2007. |
| It offers only 2 GB free storage space. | It offers 5 GB free storage space. |
| It charges an amount of $9.99 per month for 2 TB additional storage. | It charges an amount of $9.99 per month for 5 TB additional storage. |
| It supports less types of file formats. | It supports more types of file formats. |
| It shares files through web applications. | While it shares files through links. |
| It is compatible with all kinds of operating systems. | It is compatible with some selected operating systems. |
| It uses block-syncing to update changes quickly. | While it does not use block-syncing to update. |
| It does not allow to set expiry dates on files. | While it allows to set expiry dates on links. |
| It has the referral program for gaining additional storage. | While it does not have any such referral program. |