HiDrive
HiDrive is free online storage with 5GB of storage space, and is owned by STRATO, a giant in European hosting services and subsidiary of Deutsche Telecom. User needs to pay for more extra space. In premium of HiDrive, it has many advanced services, such as email uploads and FTP/NAS storage, etc. If you invite your ten friends to join HiDrive Successfully, it is said that you will be rewarded another 5GB of online storage. It is very simple to use Multcloud to move files on Hidrive to FTP, WebDAV, OneDrive, Yandex, Google Drive, MyDrive, Dropbox, etc. you can upload and download files on Hidrive.
HiDrive can be accessed from a web browser, mobile, or using their desktop client for Windows or Mac. 
HiDrive allows all users to share files by creating public links for read-only access, or granting editing rights to other HiDrive users. 
With many important files sent via email today, HiDrive has introduced a system allowing you to save email attachments directly to your storage account.