What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
You can find more information about the features for each plan here: http://www.jotform.com/pricing
To answer your question the Economy Plan will provide you with more submissions per month: 10,000 normal submissions, 10,000 SSL submissions, 10,000 Payment submissions and also will provide you with 100 GB of storage space, and allow you to add 10 sub-user accounts to share your forms with.
The premium plan provides you with 1,000 normal submissions, 1,000 SSL submissions, 1,000 Payment submissions, 10 GB of storage space and 3 sub-user accounts.
If you want to, you can start with the Premium plan to see if it fits your needs and upgrade to Economy if necessary.
Hope this helps.
Let us know if you have further questions.