Dropbox - Online Sync and File Sharing
WebDrive - WebDrive File Access Client allows you to open and edit server-based files without the additional step of downloading the file.
Google Drive - Access and sync your files anywhere
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.
Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.