1. 云：
iCloud 是苹果公司提供的云存储和云计算服务。它允许用户将文档、照片和音乐等数据存储在远程服务器上，以便下载到 iOS、macOS 或 Windows 设备。它还能够与其他用户共享和发送数据。如果 Apple 设备丢失或被盗，管理它也很有帮助。它于2011年推出。
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。
iCloud 和 pCloud 的区别：
| ICLOUD | PCLOUD |
|---|---|
| It is owned by Apple Incorporation. | It is owned by pCloud AG. |
| It was launched in 2011. | It was launched in 2013. |
| It was developed by Apple Inc. | It was developed by pCloud AG. |
| It offers 5 GB free storage space. | It offers 10 GB free storage space. |
| It provides limited maximum storage space. | It also provides limited maximum storage space. |
| It is a file hosting and cloud storage service. | It is a file sharing, cloud storage and backup service. |
| It has the maximum storage size of 2 TB. | Maximum storage size is 2 TB here also. |
| It partly supports file versioning. | It fully supports file versioning. |
| It is generally designed for macOS and iOS operating systems. | It is designed for all operating systems. |
| Maximum file size is 50 GB here. | Maximum file size is unlimited here. |
| It does not support client-side encryption. | It supports client-side encryption. |
| It has traffic or band-width limit of 200 GB or 400 GB or 600 GB per month. | It does not have traffic or band-width limit. |