how to share form submissions

You can make your submission page public and share it.

How to Share Form's Submissions Page

You can also create reports and share them. 

How to Create Form Reports in JotForm

It is also possible to add the sub-account users to your account and share the submissions, but the sub-account users will be able to edit submissions. 

How to Share Forms with a Sub-Account User

Hope this meet what you are looking for.