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 download the submissions of the form on PDF, CSV and Excel format by following the instructions provided at https://www.jotform.com/help/73-How-to-Download-Form-Submissions-as-Excel-CSV-PDF
I am not sure what you meant by "They were wanting to use google sheets but we need conditional logic."
But if you meant to ask how to store form submission data on google spreadsheet, then follow the instructions provided at this link
Ans to understand Conditional login please follow the guide at this link.
Hope the information helps.