Download

 A basic open source version is available: https://gitlab.com/ulterius/salestracker-crm

 License and installation 

The software is also available as a SaaS. This has more functionality and it will be installed and maintained. 

Each installation has its own software, so specific adjustments for your application are possible.

 It only has a site license, so unlimited with the number of users, as long as the installation or hardware allows it.