user authentication for shiny app under starter plan in

Hi Good Morning
Could someone clarify the following:
I am planning to upload a shiny app having user login page as the first screen, only after user credentials are validated, the dashboard will appear. I would like to take Starter Plan and use this app having login credentials, as a cost effective solution compared to standard or premium. could someone please clarify the pros and cons my plan of using starter plan with shiny app having user login