ownCloud is a free and opensource file sync and share app which is self hosted.

Joplin is an open-source free note taking and to-do application.

GoodSync is a backup and file synchronization program. It is used for synchronizing files between two directories.

Cryptomator is a multi-platform transparent client-side encryption of your files in the cloud.

OX Open-Xchange is a web-based communication, collaboration and office productivity software.

Microsoft OneDrive is a cloud-based storage solution from Microsoft.

Yandex.Disk is a cloud service created by Yandex that lets users store files on “cloud” servers and share them with others online. The service is based on syn…

Cubby is a flexible way to keep your files organized and accessible, both for individual productivity and shared collaboration.

FolderSync enables simple sync to cloud based storage to and from local folders on the device SD cards.

AnyClient is a platform independent file transfer client supporting all major file transfer protocols including FTP/S, SFTP, WebDAV/S, Amazon S3 and AFTP.