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.
I have tested Back-Up app and I was not able to replicate mentioned issue. When I clicked "Create a Back-up" button I was able to log in and select form.
I have used Google Chrome. If you are still unable sign in to Back-Up app, I would suggest you to start a fresh browser session or try with different browser. You can also try to login to your JotForm account first and then try to use Back-Up app.
Hope this will help. Let us know if you need further assistance.
Thank you for your quick response. To get the Back-Up app to function, I had to enable "third- party" cookies:
Chrome: Uncheck "Block third-party cookies and site data"
Firefox: Check "Accept third-party cookies: From visited"
Safari: Check "Allow from websites I visit"
Third-party cookies are not required for normal JotForm use.
We are glad to hear that you were able to solve your issue.
Also thank you for sharing your solution with us and our users.
Feel free to contact us if you have any other questions.