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。它是一个对象存储服务。它由Backblaze Incorporation在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了无限的存储空间。它也被称为B2云存储。
2. ZumoDrive：
ZumoDrive是文件托管服务，文件同步服务和基于云的文件存储服务，最初由Zecter Incorporation提供，但后来由Motorola Mobility拥有。它由Zecter Inc.开发。适用于Windows，macOS，iOS，webOS，Linux和Android。它提供了2 GB的免费存储空间，可以扩展到500 GB的付费存储空间。它于2009年推出。 Backblaze B2和ZumoDrive之间的区别：
| 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. |