In Kanban Tool there is a free fare, as it seems to me this tariff will allow to fully use the program to automate the work processes of one employee or not a large team. There is a minimal analyst, you can generate reports. Ability to configure access for guest users. Each user has the ability to leave comments to tasks. Integration with Google Drive and Dropbox opens more opportunities for working with the project. Until I encountered the problem of storing data in the cloud, it is necessary to ask whether there are restrictions on the data volume.

There are integration with Google Drive, dropbox. To and in any standard kanban service there are functions of file attachments and comments to tasks. Unlike analogs, it has the ability to access guest users (for example, a client), there is minimal analytics. There is a paid and free version, comparing analogs are fashionable to say that pricing is quite affordable. All information is available at any time, as there is the possibility of using the web interface and integration with the mail client.

It is great to view everyone's tasks on one board and then assign new ones.