1.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。
2. 特雷索里特：
Tresorit 是 Tresorit 提供的云存储、文件同步和文件共享服务。它是最安全的云计算服务之一。它提供端到端的加密文件同步和文件共享服务。它由 Tresorit 于 2014 年推出。它提供 3 GB 的免费存储空间。它支持 Windows、macOS、iOS、Android、Windows Phone 和 Linux。 SugarSync 和 Tresorit 的区别：
| S.No | SUGARSYNC | TRESORIT |
|---|---|---|
| 1 | It is developed and owned by J2 Global. | It is developed and owned by Tresorit. |
| 2 | It was launched in 2009. | It was launched in 2014. |
| 3 | It does not offer free storage space. | It offers 3 GB free storage space. |
| 4 | Maximum storage size is 60 GB for personal paid and unlimited for professional paid. | Maximum storage size is 1000 GB here. |
| 5 | It supports developer API. | It does not support developer API. |
| 6 | It does not have client-side encryption. | It has client-side encryption. |
| 7 | Maximum file size is not restricted here. | Maximum file size is 500 MB for free, 5 GB for premium and 10 GB for rest of paid plans. |
| 8 | It supports file versioning. | It supports file versioning for paid plans only. |
| 9 | It has traffic or band-width limit of 10 GB per day for free and 250 GB per day for paid. | It has no traffic or band-width limit. |