Is collaboration/sub user only available on some accounts?

My teammates made up a jotform on her account. Can she share it with me to edit?

The sub users and form collaborators features are available for all accounts.

There are two options:

1) Share form with a sub user.

How to Share Forms with a Sub-Account User

2) Share form with a collaborator.

Understanding Form Collaboration

If you need any further assistance, please let us know.