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.Yandex 磁盘：
Yandex Disk 是 Yandex 提供的云存储、文件同步和文件共享服务。它允许用户将文件存储在云上，并允许与他人在线共享文件。它由 Yandex 于 2012 年推出。它提供 10 GB 的免费存储空间。它为付费提供了有限的最大存储空间。 Yandex Disk 提供的最大存储空间为 1024 GB。
iCloud 和 Yandex 磁盘的区别：
| ICLOUD | YANDEX DISK |
|---|---|
| It is owned by Apple Incorporation. | It is owned by Yandex. |
| It was launched in 2011. | It was launched in 2012. |
| It was developed by Apple. | It was developed by Yandex. |
| It offers 5 GB free storage space. | It offers 10 GB free storage space. |
| It provides limited maximum storage space for paid. | It also provides limited maximum storage space for paid. |
| It supports the Developer API. | Developer API is REST, WebDAV and SDK. |
| It has the maximum storage size of 2 TB. | Maximum storage size is 1024 GB. |
| It partly supports file versioning. | It does not support file versioning. |
| It has traffic or band-width limit of 200 GB or 400 GB or 600 GB per month. | It has traffic or band-width limit of 200% of storage size per day. |
| Maximum file size is 50 GB here. | Here maximum file size is 2 GB upload via Web and 50 GB upload via application. |
| It does not have referral system. | It provides additional 10 GB free storage space for referral. |