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. 云：
pCloud 是 pCloud AG 提供的文件共享和云存储服务。它是一种安全的云存储服务。它还提供文件共享服务，有助于与其他用户共享文件。它没有文件大小的限制。它由 pCloud AG 开发。它提供 10 GB 的免费存储空间。它为付费用户提供有限的最大存储空间。它于2013年推出。
SugarSync 和 pCloud 的区别：
| SUGARSYNC | PCLOUD |
|---|---|
| It is owned by J2 Global. | It is owned by pCloud AG. |
| It was launched in 2009. | It was launched in 2013. |
| It was developed by J2 Global. | It was developed by pCloud AG. |
| It does not offer free storage space. | It offers 10 GB free storage space. |
| It provides limited as well as unlimited maximum storage space. | It provides limited maximum storage space. |
| It is a file hosting and file synchronization service. | It is a file sharing service. |
| Maximum storage size is 60 GB for personal paid and unlimited for professional paid. | Maximum storage size is 2 TB here. |
| It supports file versioning. | It also supports file versioning. |
| It provides cloud storage service. | It provides cloud storage and cloud-based backup service. |
| It does not support client-side encryption. | It supports client-side encryption. |
| It has traffic or band-width limit of 10 GB per day for free and 250 GB per day for paid. | It does not have traffic or band-width limit. |