1.亚马逊云端硬盘：
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。可以从台式机，移动设备和平板电脑等多种设备上传输此驱动器上的文件和文件夹。 Amazon Drive最初被称为Amazon Cloud Drive。它在世界范围内不可用。它在某些选定的国家/地区可用。它于2011年推出。
2. CloudMe：
CloudMe是CloudMe AB提供的文件存储服务。它提供文件同步，云存储和客户端软件。它由Daniel Arthursson于2011年创立。最初，它的名称为iCloud，但后来苹果公司获得了该名称。它提供3 GB的免费存储空间。它为高级帐户提供了有限的存储空间。它最大的竞争对手是Dropbox。
Amazon Drive和CloudMe之间的区别：
| AMAZON DRIVE | CLOUDME |
|---|---|
| It is owned by Amazon. | It is owned by CloudMe AB. |
| It was launched in March 2011. | It was launched in April 2011. |
| It offers 5 GB free storage space. | It offers 3 GB free storage space. |
| It is mostly used for storing photos. | It is used for storing all types of files. |
| It has the maximum storage size of 30 TB. | Maximum storage size is 500 GB for paid here. |
| It does not support file versioning. | It supports file versioning but rarely. |
| Maximum file size in Amazon Drive is 2 GB via Web and 50 GB via Drive application. | Here maximum file size is 150 MB for free and unlimited for premium accounts. |
| It is used in all countries excluding Mexico and China. | It is used across the world. |
| There is no way to control permission to the invite link of file or folder. | It gives access to control the permission to the invite link of file or folder. |
| There is no referral system here for gaining free storage space. | It provides an additional 500 MB for referrals up to 16 GB paid. |