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.
In order to allow your users complete their submission on a later date , please follow this guide : http://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later
There you will find further info about how to do it.
Also , you can use our Auto fill feature, the user does not need to submit the form, just fill it out and if, for example, the Browser is closed, the user will be able to continue filling the form, this is the guide : http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature
Both methods will work for you , you can decide which one to use.
Please, let us know if you have more questions or need more help, we will be glad to assist you.