tuning software

hello guys, quick question what do you guys think is better kess v2 or dimsport genius? and do any of these have like a credit system? or do i just buy the product and tune as many cars as i want? and I'm talking about the master option.

What is the engine, vehicle, and mods? What are the goals for the project?

it's not for my car i currently tune some cars as a freelancer and I'm thinking of opening a shop and i need a broad tuning software