1.泰坦文件：
TitanFile 是 TitanFile Incorporation 提供的文件共享服务和云存储服务。它是可用的安全云计算服务之一。它主要用于加拿大和美国。它为专业人士提供了一种安全的方式来共享文件并与他们的客户进行交流。它由 TitanFile Incorporation 于 2011 年推出。它不提供免费存储空间。
2. Ubuntu 一：
Ubuntu One 是由 Canonical Limited 提供的文件托管服务、文件同步服务和云服务。这是一个基于 OpenID 的单点登录服务。它提供了在云上存储文件以及从云中传输音乐的服务。它由 Canonical Ltd 开发，适用于 Windows、OS X、iOS、Ubuntu 和 Android。它提供了 5 GB 的免费存储空间。它于2009年推出。
TitanFile 和 Ubuntu One 的区别：
| TITANFILE | UBUNTU ONE |
|---|---|
| It is owned by TitanFile Incorporation. | It was owned by Canonical Limited. |
| It was launched in 2011. | It was launched in 2009. |
| It does not offer free storage space. | It offered 5 GB free storage space. |
| It was developed by TitanFile Inc. | It was developed by Canonical Ltd. |
| Maximum storage size is unlimited here. | Maximum storage size was unlimited here also. |
| It is still in use. | This service was suspended in 2014. |
| Files stored here are encrypted. | Files stored in Ubuntu One were not encrypted. |
| Maximum file size is 100 MB for free, 1 GB for paid and 4 GB for professionals. | Maximum file size was 5 GB per file. |
| It is a file hosting and cloud storage service. | It was a commercial file synchronization service. |
| It has client-side encryption. | It did not have client-side encryption. |
| It has no traffic or band-width limit. | It has Amazon S3 limits as traffic or band-width limit. |