I am willing to have a free version of the app and a paid version (monthly and yearly memberhsip).
The paid better version offer access to more content and more features.
The free user can download the app and use it for free. Whenever he wants, he can upgrade to the paid version by selecting a membership plan.
I posted again because when I searched in the forum the responses were not clear some people said I need 2 apps (one free and one with paid memberhsip) and it was not possible another way. Explaining that we can not change from Free to Paying.
Some people said something similar to you.
I just want to make sure I am going in the right direction.