JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
If you have free account you will have 100 Monthly Submissions, 10 SSL Secure Submissions, 10 Receive Payments total and total storage is 100MB. That means that your uploaded files will always go to JotForm account. Dropbox is independent form JotForm account you can have Dropbox integration or not. That means that if you have Dropbox Integration your uploaded files will go to Dropbox also.
Considering all of that you can use free account if you will not get more that 100 Monthly Submissions and if you will not reach 100MB limit.
You can also upgrade you account if you want to increase your submission and total storage limit. More about different type of accounts you can find on our Pricing page.
Hope this will help. Let us know of you need further assistance.