Is there a difference between the online service and the self-hosted software?

Kanban Tool On-Site is an on-premise variant of the Kanban Tool service, which your company can run and manage within your own secure environment. At its core, it offers the same seamless experience and powerful features as the online kanbantool.com service, while giving you full control over the system.

The key difference is where your data is stored.
With the online service, your data resides on our secure servers. With the On-Site software, everything is hosted on your company’s server — no Internet connection is required, and you don’t need to worry about transmitting sensitive data to the cloud. You install it as a virtual machine and manage updates and backups according to your internal policies.

As it’s designed to run in a fully web-isolated environment, Kanban Tool On-Site does not include Internet-based features, such as integrations with Zapier or file hosting services like Google Drive, Dropbox, Box, or OneDrive.