GitKraken runs on your computer and communicates with GitKraken's servers; whereas, GitKraken Enterprise is installed behind your company's firewall and only communicates with your server.
GitKraken and GitKraken Pro Setup
GitKraken Enterprise Setup
*Requirements: GitKraken Enterprise requires a Linux server running a local version of GitKraken's Server functions, allowing account management, auto-updates and more. A small spec Linux box (or virtual machine) with at least 1 core, 1GB of RAM and 5GB of disk space will be sufficient.