Do you have a registration limit?

1- QUAL O LIMITE DE INSCRIÇÕES EM UM FORMULÁRIO...?

Hi José,

Thanks for reaching out to Jotform Support. Unfortunately, our Portuguese Support agents are busy helping other Jotform users at the moment. I'll try to help you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd rather have support in Portuguese, let us know and we can have them do that. But, keep in mind that you'd have to wait until they're available again.

As for your first question, are you referring to the submission limit? If so, for the Starter plan, you are set to have a 500 total submission limit and a 100 monthly submission limit. As for the Monthly submission limit, the Monthly Submission Limit for the Starter plan means that you have 100 total submission entries, that your account can receive every month, and every first day of the month this resets back to zero, allowing you to receive more submissions while the Total Submission limit, this means that you are allowed to store a maximum of 500 submission entries in your account. This does not reset every month compared to the Monthly Submission limit.

As for your other questions, I've moved that to a new thread:

2. What should I do to increase this limit?

3. Do you have special plans for non-profits? NGOs?

You might also want to check out this guide Understanding Your Account Usage and Limits for more information. 

Let us know if you have any other questions.