1. 跳跃分享：
Jumpshare 是 Jumpshare Incorporation 提供的文件共享服务。它使用户能够从个人计算机和网络上传文件。它提供免费和高级服务。它提供 2 GB 的免费存储空间。它由 Jumpshare Incorporation 于 2012 年推出。在 Jumpshare 中，最初用户无需注册即可上传文件，但后来强制注册。
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。
Jumpshare 和 Ubuntu One 的区别：
| JUMPSHARE | UBUNTU ONE |
|---|---|
| It is owned by Jumpshare Incorporation. | It was owned by Canonical Limited. |
| It was launched in 2012. | It was launched in 2009. |
| It offers 2 GB free storage space. | It offered 5 GB free storage space. |
| It was developed by Jumpshare Inc. | It was developed by Canonical Ltd. |
| It has the maximum storage size of 1 TB. | Maximum storage size was unlimited here. |
| 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 250 MB for free and unlimited for paid. | 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 traffic or band-width limit of 5 GB per month for free and 200 Gb per month for paid. | It has Amazon S3 limits as traffic or band-width limit. |
| It provides real-time file sharing with inbuilt utilities for screenshots, notes and voice clips. | It did not provide real-time file sharing with inbuilt utilities. |
| Its initial versions didn’t need sign up but later on it was made mandatory. | Sign up was mandatory from the very first version of it. |