What is the dashboard?

Hello, I'm assuming you're referring to the line below on the guide where you commented:

With forms, you can easily collect necessary information and neatly store the data in your Jotform dashboard...

What we meant there is your actual Account Dashboard, where you can do a bunch of stuff (e.g. build forms, view your account settings, view submissions, and so on).

Specifically, we're referring to how we store your submissions data on your Submissions Page.

Complete guide: How-to-View-Form-Submissions 

I moved your second question about Dropbox on a separate thread https://www.jotform.com/answers/1030159

We'll have it addressed there shortly.