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。
2.百度云：
百度云是百度公司提供的云服务。它提供云存储服务、客户端软件、文件管理、资源共享和第三方集成。一旦在客户端上创建文件，它就可以在基于 Internet 的客户端上自动同步文件。它由百度公司于2012年推出。它的实际名称是百度网盘，但俗称百度云。
iCloud 和百度云的区别：
| ICLOUD | BAIDU CLOUD |
|---|---|
| It is owned by Apple Incorporation. | It is owned by Baidu Incorporation. |
| It was launched in 2011. | It was launched in 2012. |
| It offers 5 GB free storage space. | It offers 6 GB free storage space. |
| It is used world wide. | While it is used in some specific region and specific countries like China. |
| It charges comparatively more for additional storage that means it is more costly. | It charges less for additional storage that means it is less costly. |
| It has maximum storage size of 2 TB. | It also has the maximum storage size of 2 TB. |
| Maximum file size in iCloud is 50 GB. | Here maximum file size is 4 GB for free and 20 GB for paid. |
| It partially supports file versioning. | It does not support file versioning. |
| The number of users of iCloud more. | The number of users of Baidu Cloud is less. |
| It does not support remote uploading. | It supports remote uploading. |