The FileCloud server is self-hosted and gives me the ability to store and share files, sync across different devices and back-up all documents and photos so that I don't have to worry about security.
Solid Explorer - Solid Explorer is a powerful Android file manager featuring access to most popular cloud storages, root access and easy extensibility.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
MiXplorer - MiXplorer is a mobile app that was designed to make it easy to organize and manage the files on your Android device.
Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.
Cx File Explorer - Cx File Explorer is a free powerful file manager application with a clean and intuitive interface.
WebDrive - WebDrive File Access Client allows you to open and edit server-based files without the additional step of downloading the file.