After creating my form I want multiple users to access the forms even without wifi(across multiple devices). How can this be achieved?

You can assign the form to your users so they can open the form in kiosk mode or offline mode using Jotform Mobile App.

Guide: 

- https://www.jotform.com/blog/use-jotform-mobile-forms-to-assign-forms/

- How-to-Use-Kiosk-Mode-in-JotForm-Mobile-Forms

Another option is to fill a form offline and submit it later once you get an internet connection would be through the PDF version of your form. Please follow this guide to export it to a Fillable PDF: https://www.jotform.com/help/212-How-to-Create-a-PDF-Form