1.亚马逊驱动器：
Amazon Drive 是 Amazon 提供的文件托管服务和云存储。它允许云存储、文件托管、文件共享和文件备份。此驱动器上的文件和文件夹可以从台式机、手机和平板电脑等多种设备传输。 Amazon Drive 最初被称为 Amazon Cloud Drive。它在世界范围内不可用。它适用于某些选定的国家/地区。它于2011年推出。
2.乌拉：
Wuala 是一种文件同步服务、文件存储服务、文件版本控制服务和备份存储服务，最初由 Caleido Incorporation 提供，但后来归希捷科技所有。它是由Dominik Grolimund和Luzius Meisserin 开发的。它主要是使用Java开发的。它提供了 5 GB 的免费存储空间。它于2008年推出。
Amazon Drive 和 Wuala 的区别：
| AMAZON DRIVE | WUALA |
|---|---|
| It is owned by Amazon. | Originally owned by Caleido Incorporation but was later owned by Seagate Technology. |
| It was launched in 2011. | It was launched in 2008. |
| It offers 5 GB free storage space. | It offered 5 GB free storage space but later on it was made only paid-service. |
| It was developed by Amazon. | It was developed by Dominik Grolimund and Luzius Meisserin. |
| It does not have referral system for gaining additional free storage space. | Initially it had referral system but later on referral service was suspended. |
| It has the maximum storage size of 30 TB. | Maximum storage size offered was 2 TB. |
| It does not support file versioning. | It supported file versioning. |
| It does not provide ability to trade local disk storage space. | It provided ability to trade local disk storage space against cloud storage. |
| It is used in all countries excluding Mexico and China. | While it was used world wide. |
| It is still in use. | This service was suspended in 2015. |