Does JotForm give/sell e-mail addresses to a third party?

And does this change in free vs paid subscriptions?

No. We don't give/sell our user's email addresses to anyone. We only use this information to contact you from time to time about us, our website, and our products and services. Please take a look at our Privacy policy for more information which shall be updated from time to time. This policy remains the same for all users and doesn't change based on subscription type. 

Hope this information helps!