creating a new app by yourself and charging automatically

[lubien]

You can have unlimited organizations as long as it’s not one way to abuse free tier though feel free to create as many as you need for different businesses/clients.

We talk more about it here:

Free usage quotas and violating terms of service

Hi there! We don’t really encourage multiple orgs to avoid incurring billable usage. If a user in good faith needs multiple orgs, that’s okay and we will encourage that usage. If the goal is to scale stuff across multiple orgs specifically to keep reusing the free tier, then that is a ToS violation. I hope this answers your question!