mobile app template

hi everyone,
I am very interested in mobile apps, especially in game templates,
well now suppose I become a freelancer who works on a freelance site that has lots of clients like fiverr, upwork and others,
and specifically what I do is game development. if I use a game template to make my work easier, what license should I use? regular license or extended license?

what is the difference between a regular license and an extended license?
because the information on codecanyon is still not very detailed, I need a detailed explanation so that I really understand,

Thank You

In your example you need a new regular license for each client - there’s no “multi-use” licenses.

Extended is for how you plan to use the template eg if you want to monetise it multiple times like a subscription