Disk-O: is described as 'Mounts cloud storages as network drives and let your applications access your cloud files like a part of the file system. Works with WebDAV, Google Drive, Dropbox, Yandex.Disk and Mail.Ru Cloud' and is an app. There are more than 10 alternatives to Disk-O: for a variety of platforms, including Windows, Mac, Linux, Android and BSD apps. The best Disk-O: alternative is Rclone, which is both free and Open Source. Other great apps like Disk-O: are Cyberduck, RaiDrive, Mountain Duck and CloudMounter.