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 are referring to maximum amount of submissions can be made using paypal, yes there is, it's 10 payment submissions per month for free users and 1000 for premium. More informations can be found on our Pricing page.
However if you are referring to the paypal products that can be ordered from your form, no, there's no limit for that.
Let us know if you have further questions. Thanks!