1. 保管箱：
Dropbox 是美国公司 Dropbox Incorporation 提供的文件托管服务。它提供云存储、文件同步、个人云和客户端软件。它成立于 2007 年。 Dropbox 是由两位麻省理工学院的学生Drew Houston和Arash Ferdowsi 开发的。它仅提供 2 GB 的免费存储空间。它是最早的云存储服务之一。
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。
Dropbox 和 Tresorit 的区别：
| DROPBOX | TRESORIT |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by Tresorit. |
| It was launched in 2007. | It was launched in 2014. |
| It was developed by Drew Houston and Arash Ferdowsi. | It was developed by Tresorit. |
| It offers 2 GB free storage space. | It offers 3 GB free storage space. |
| It provides unlimited maximum storage space for paid. | It provides limited maximum storage space for paid. |
| It does not have client-side encryption. | It has client-side encryption. |
| Maximum storage size is unlimited here. | Maximum storage size is 1000 GB here. |
| It supports developer API. | It does not support developer API. |
| It supports less types of file formats. | It supports more types of file formats. |
| Maximum file size is 10 GB and unlimited using client application. | Here maximum file size is 500 MB for free, 5 GB for premium and 10 GB for rest of paid plans. |
| It supports file versioning but partly. | It supports file versioning for paid plans only. |
| It provides additional 500 MB free storage space for referral up to 18 GB. | It has no referral system for gaining free storage space. |
| It has traffic or band-width limit of 20 GB per day for free and 200 GB per day for paid. | It has no traffic or band-width limit. |
| It shares files through web applications. | While it shares files through links. |
| It uses block-syncing to update changes quickly. | It does not use block-syncing to update changes quickly. |