1.亚马逊云端硬盘：
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。可以从台式机，移动设备和平板电脑等多种设备上传输此驱动器上的文件和文件夹。 Amazon Drive最初被称为Amazon Cloud Drive。它在世界范围内不可用。它在某些选定的国家/地区可用。它于2011年推出。
2. pCloud：
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。它还提供了文件共享服务，该服务有助于与其他用户共享文件。它没有文件大小的限制。它是由pCloud AG开发的。它提供10 GB的可用存储空间。它提供了有限的最大付费存储空间。它于2013年推出。
Amazon Drive和pCloud之间的区别：
| AMAZON DRIVE | PCLOUD |
|---|---|
| It is owned by Amazon. | It is owned by pCloud AG. |
| It was launched in 2011. | It was launched in 2013. |
| It was developed by Amazon. | It was developed by pCloud AG. |
| It offers 5 GB free storage space. | It offers 10 GB free storage space. |
| It is a file hosting and cloud storage service. | It is a file sharing, cloud storage and backup service. |
| It provides limited maximum storage space. | It also provides limited maximum storage space. |
| It is used in all countries excluding Mexico and China. | While it is used world wide. |
| Maximum storage size is 30 TB here. | Here maximum storage size is 2 TB. |
| It is used to store photos specifically. | It is used to store all types of files. |
| Maximum file size is 2 GB upload via web and 50 GB upload via drive application. | Maximum file size is unlimited here. |
| It has Amazon S3 limit as traffic or band-width limit. | It does not have traffic or band-width limit. |
| It does not support file versioning. | It supports file versioning. |
| It does not provide client-side encryption. | It provides client-side encryption. |