The app is robust, connects seamlessly at startup and does not crash. The app can map cloud storage as a local drive as well as a folder on a local drive, thus obviating the need to have free drive letters. The app displays the amount of used and free space and makes it easy for the user to see how much storage is available on each cloud account.
RaiDrive - Mount NAS, Router, Google Drive, OneDrive and Dropbox to a network drive or file explorer.
Cloud Storage Manager - Cloud Storage Manager provides you with an Explorer view of all your Azure Blobs. You can see details of each individual Blob, including Blob size, date the Blob was created and modified, as well as what Storage Tiering the Blob currently is in.
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.
BestSync - BestSync is a utility for following solutions:
Mountain Duck - Cyberduck for mounting volumes in the file explorer. Available for Mac and Windows.
CloudXplorer - This cloud storage management system enables the clouds users to manage and explores their favorite cloud storage accounts in a more systemized way.