Hi Punkara,
There is no paid version of Issabel 5. Issabel 5, is open source, similar as Issabel 4.
Based on that, Issabel Single Tenant (Version 5 and 4) is a platform that enables to add paid modules such as "Issabel Network" https://www.issabel.com/en/issabel-network/, or our new contact center https://www.issabel.com/en/contact-center/ (This will be available on August 28th, 2024).
I hope this answers your question.
