1. 超级：
Mega 是由 Mega Limited 提供的文件托管服务和云存储。它基本上是为基于 Web 的应用程序设计的，但它也为 Android、Windows Phone 和 iPhone 提供移动应用程序。它由Kim Dotcom于 2013 年推出。它使用 C++、JavaScript、 Java和 Objective-C 开发。它提供 15 GB 的免费存储空间，另外还有 35 GB 的免费试用空间。
2. 糖同步：
SugarSync 是 J2 Global 提供的云服务和文件同步服务。它可以主动同步计算机系统和其他设备中的文件，以进行备份、访问和共享。它受 Windows、macOS、iOS 和 Android 操作系统支持。它由 J2 Global 于 2009 年推出。它不提供免费存储空间。它为付费用户提供有限和无限的存储空间。 Mega 和 SugarSync 的区别：
| MEGA | SUGARSYNC |
|---|---|
| It is owned by Mega Limited. | It is owned by J2 Global. |
| It was launched in 2013. | It was launched in 2009. |
| It was developed by Kim Dotcom. | It was developed by J2 Global. |
| It offers 15 GB free storage space with additional 35 GB for free trial. | It does not offer free storage space. |
| It provides limited maximum storage space for paid. | It provides limited as well as unlimited maximum storage space for paid. |
| It does not support remote uploading. | It also does not support remote uploading. |
| Maximum storage size is 16 TB here. | Maximum storage size is 60 GB for personal paid and unlimited for professional paid. |
| Maximum file size is equal to available cloud drive space. | Here maximum file size is not restricted. |
| It supports file versioning. | It also supports file versioning. |
| It has traffic or band-width limit of 10 GB free and up to 96 TB per month for paid. | It has traffic or band-width limit of 10 GB per day for free and 250 GB per day for paid. |
| It provides application for Windows, macOS, Linus, iOS, Android, Windows Phone, Blackberry and all web systems. | It provides application for Windows, macOS, iOS and Android only. |