1. 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。
2.乌拉：
Wuala 是一种文件同步服务、文件存储服务、文件版本控制服务和备份存储服务，最初由 Caleido Incorporation 提供，但后来归希捷科技所有。它是由Dominik Grolimund和Luzius Meisserin 开发的。它主要是使用Java开发的。它提供了 5 GB 的免费存储空间。它于2008年推出。
Tresorit 和 Wuala 的区别：
| TRESORIT | WUALA |
|---|---|
| It is owned by Tresorit. | Originally owned by Caleido Incorporation but was later owned by Seagate Technology. |
| It was launched in 2014. | It was launched in 2008. |
| It offers 3 GB free storage space. | It offered 5 GB free storage space but later on it was made only paid-service. |
| It was developed by Tresorit. | It was developed by Dominik Grolimund and Luzius Meisserin. |
| It does not provide additional free storage space for referral. | Initially it had referral system but later on referral service was suspended. |
| Maximum storage size is 1000 GB here. | Maximum storage size offered was 2 TB here. |
| It supports file versioning for paid plans only. | It fully supported file versioning. |
| It does not provide ability to trade local disk storage space. | It provided ability to trade local disk storage space against cloud storage. |
| It is still in use. | This service was suspended in 2015. |
| It supports client-side encryption. | It did not support client-side encryption. |