1. 谷歌云端硬盘：
Google Drive 是 Google 提供的文件存储和同步服务。它允许用户存储文件和个人数据并共享文件。它提供 15 GB 的免费存储空间。它由 Google 于 2012 年推出。几乎每个与互联网有关的人都在使用它。每个人都用它来存储一些专业和个人数据。
2. ZumoDrive：
ZumoDrive 是一种文件托管服务、文件同步服务和基于云的文件存储服务，最初由 Zecter Incorporation 提供，但后来归摩托罗拉移动所有。它由 Zecter Inc. 开发，适用于 Windows、macOS、iOS、webOS、Linux 和 Android。它提供 2 GB 免费存储空间，付费可扩展至 500 GB。它于2009年推出。
Google Drive 和 ZumoDrive 的区别：
| GOOGLE DRIVE | ZUMODRIVE |
|---|---|
| It is owned by Google LLC. | Originally owned by Zecter Incorporation but was later owned by Motorola Mobility. |
| It was launched in 2012. | It was launched in 2009. |
| It offers 15 GB free storage space. | It offered 2 GB free storage space. |
| It was developed by Google. | It was developed by Zecter Inc. |
| It has the maximum storage size of 30 TB. | Maximum storage size offered was 500 GB here. |
| It does not use delta encoding technology. | It used delta encoding technology. |
| It is still in use. | This service was suspended in 2012. |
| Maximum file size is 5 GB here. | maximum file had no limit here. |
| It does not provide intelligent predictive caching. | It provided intelligent predictive caching. |
| It supports Windows, OS X, Linux, Android and iOS. | It supported Windows, OS X, Linux, Android, iOS and Palm webOS. |
| It has more number of users. | It had comparatively less number of users. |