Extension pricing models

Extension pricing models

Hello,

I'd like to know if it is somehow possible, as a developer of Zoho CRM extensions via Sigma, to publish extensions with a pricing model other than single-tier monthly/yearly fee or one-time payment. For instance, freemium (e.g. free plan, pro plan). I don't see the option in Sigma but just to be sure about that (and if yes, how to achieve that).

Thank you!