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. 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。
Dropbox 和 Jumpshare 的区别：
| DROPBOX | JUMPSHARE |
|---|---|
| It is owned by Dropbox Incorporation. | It is owned by Jumpshare Incorporation. |
| It was launched in 2007. | It was launched in 2012. |
| It offers 2 GB free storage space. | It also offers 2 GB free storage space. |
| Maximum storage size is unlimited here. | Maximum storage size is 1 TB here. |
| 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 250 MB for free and unlimited for paid. |
| It does not support remote uploading. | It supports remote uploading. |
| Sign up is mandatory from the very first version of it. | Its initial versions didn’t need sign up but later on it was made mandatory. |
| It has traffic or band-width limit of 20 GB per day for free and 200 GB per day for paid. | It has traffic or band-width limit of 5 GB per month for free and 200 GB per month for paid. |
| It provides additional 500 MB for referrals up to 18 GB paid. | There is no referral system here for gaining free storage space. |
| It shares files through web applications. | While it shares files through links. |
| It charges comparatively more for additional storage that means it is more costly. | It charges less for additional storage that means it is less costly. |
| It uses block-syncing to update changes quickly. | It does not use block-syncing to update changes quickly. |