
Microsoft OneDrive
Dropbox
Google Drive
Mega
Box
Nextcloud
ownCloud
pCloud
Flow-e
KanbanMail
Sortd
KanbanFlow
GitKraken Glo Boards
Drag for Gmail
Businessmap.io
Kantree
Flow-e is a visualization layer on top of your Gmail or Outlook inbox. It provides an elegant Kanban-like workflow that's combined with the ideas behind Inbox Zero and GTD. Flow-e eliminates the need of external task management tools and transforms your inbox into a central To Do app.
Microsoft OneDrive
Flow-eFlow-e is highly recommended for professionals and teams who manage a significant amount of email communication and prefer a visual, task-oriented approach to organize their workflow effectively.
For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Dropbox - Online Sync and File Sharing
KanbanMail - A Kanban board for your emails.
Google Drive - Access and sync your files anywhere
Sortd - Rated the #1 App for Gmail
Mega - Secure File Storage and collaboration
KanbanFlow - KanbanFlow is a Lean project management tool allowing real-time collaboration between team members. Supports the Pomodoro technique for time tracking.