The page that shows when users click the SquaredUp home button, or when they login, will be the first dashboard on the navigation bar. By default this is the 'Getting Started' dashboard.
To change the home page click ☰ > edit navigation and drag the dashboard you want to become the start page to the top of the list of dashboards. Click on the SquaredUp home button, it should show the dashboard you placed at the top of navigation list.