1. Backblaze B2 :
Backblaze B2 是由 Backblaze Incorporation 提供的云存储服务。它与 Amazon S3 和其他云存储服务非常相似。它是一种对象存储服务。它由 Backblaze Incorporation 于 2015 年推出。它提供 10 GB 的免费存储空间。它还为高级帐户提供无限的存储空间。它也被称为 B2 云存储。
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。 Backblaze B2 和 ZumoDrive 的区别：
| S.No | BACKBLAZE B2 | ZUMODRIVE |
|---|---|---|
| 1. | It is owned by Backblaze Incorporation. | Originally owned by Zecter Incorporation but was later owned by Motorola Mobility. |
| 2. | It was launched in 2015. | It was launched in 2009. |
| 3. | It offers 10 GB free storage space. | It offered 2 GB free storage space. |
| 4. | It was developed by Backblaze Inc. | It was developed by Zecter Inc. |
| 5. | It has the unlimited maximum storage size. | Maximum storage size offered was 500 GB. |
| 6. | It does not use delta encoding technology. | It used delta encoding technology. |
| 7. | It is still in use. | This service was suspended in 2012. |
| 8. | Files are not locally encrypted. | Files were encrypted at servers. |
| 9. | It does not provide intelligent predictive caching. | It provided intelligent predictive caching. |
| 10. | It provides more security of data. | It provided comparatively less security of data. |