Air Explorer support the next clouds:
As a cloud manager, Air Explorer supports the best cloud storage services. What’s more, you can add any server to Air Explorer using popular protocols such as WebDav, FTP, SFT and S3, giving you even more options for effectively storing and managing your files.

FTP

SFTP

WebDav
You can add and use any WebDAV server such as:
–cloudme.com,
–powerfolder.com,
–opendrive.com,
–owndrive.com,…
–cloudme.com,
–powerfolder.com,
–opendrive.com,
–owndrive.com,…

Stack Storage

Mail.com
2 GB of free storage
Sign up: mail.com

4shared
16 GB of free storage
Sign up: 4shared.com

SharePoint Online

SharePoint China

ADrive

Jottacloud
5 GB of free storage
Sign up: jottacloud.com

Huawei
5 GB of free storage
Sign up: huawei.com