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 10 月推出。
2.亚马逊驱动器：
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。此驱动器上的文件和文件夹可以从台式机、移动设备和平板电脑等多种设备传输。 Amazon Drive 最初被称为 Amazon Cloud Drive。它在世界范围内不可用。它适用于某些选定的国家/地区。它于 2011 年 3 月推出。
iCloud 和 Amazon Drive 的区别：
| iCLOUD | AMAZON DRIVE |
|---|---|
| It is owned by Apple Incorporation. | It is owned by Amazon. |
| It was launched in October 2011. | It was launched in March 2011. |
| It offers 5 GB free storage space in all countries. | It also offers 5 GB free storage space but in specific countries. |
| File versioning is possible but partly. | File versioning is not possible. |
| Maximum file size that can be uploaded is 50 GB. | Maximum file size that can be uploaded is 2 GB via Web and 50 GB Drive app. |
| The number of users using iCloud is more. | The number of users using Amazon Drive is less . |
| It provides full security of data. | It also provides full security of data but comparatively less. |
| It is usable across the world. | While it is usable in selected countries. |
| It gives access to control the permission to the invite link of file or folder. | There is no way to control permission to the invite link of file or folder. |
| It limits 200 or 400 or 600 per month bad-width limit. | It supports Amazon S3 limits. |
| It is used for storing all types of files including photos, videos, pdf etc. | While it is used mainly for storing photos. |