The Movement branding can be removed from Apps on the Pro Plan and above, you can upgrade your plan by logging into your account and heading to the Account Tab, then the Subscription Tab.

For Pro Plan and above users, navigate to  App Settings > Branding and then toggle Remove Branding on.  App settings can be accessed by clicking on the button with your app's name in the very top left of the sidebar. 

Please reach out if you have any questions at all!