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. 云：
pCloud 是 pCloud AG 提供的文件共享和云存储服务。它是一种安全的云存储服务。它还提供文件共享服务，有助于与其他用户共享文件。它没有文件大小的限制。它由 pCloud AG 开发。它提供 10 GB 的免费存储空间。它为付费用户提供有限的最大存储空间。它于2013年推出。
Dropbox 和 pCloud 的区别：
| DROPBOX | PCLOUD |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by pCloud AG. |
| It was launched in 2007. | It was launched in 2013. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by pCloud AG. |
| It offers 2 GB free storage space. | It offers 10 GB free storage space. |
| It provides unlimited maximum storage space. | It provides limited maximum storage space. |
| It is a file hosting, file synchronization and cloud storage service. | It is a file sharing, cloud storage and backup service. |
| It has the unlimited maximum storage size. | Maximum storage size is 2 TB here. |
| It partly supports file versioning. | It fully supports file versioning. |
| Maximum file size is 10 GB and unlimited using client application. | Maximum file size is unlimited here. |
| It does not provide client-side encryption. | It provides client-side encryption. |
| 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 does not have traffic or band-width limit. |
| It provides additional 500 MB free storage space for referral up to 18 GB. | It does not provide additional free storage space for referrals. |