Is MailChimp welcome email option in the integration only for the paying customers?

As i saw you have ticked in the example picture the Mailchimp welcome email, just a question for that too. Mailchimp welcome email is not only for the payed customers? Ty in advance, i will try your solution right away :)

All of the options on JotForm are available to everyone - on free and paid plans just the same.

The only possible difference that you might experience is if you are using integration that allows you to have some services with some specific paid features - in this example, if the welcome email is for those who have paid account on MailChimp, then we would allow you to select this option, but it would depend on MailChimp account if it will work.

Do let us know if you happen to have any further questions and we would be happy to assist.