I just started designing a UI in Sketch App for Mac. From what I understand the Sketch design can be exported to SuperNova which converts it to a Flutter design. My questions are as follows:
What size should I design the Sketch app to fit all android devices and Apple devices?
What can I expect the database design to cost? (I assume this will be in Google Firebase)
What can I expect the cost to be for a freelancer to assign actions and links to Flutter/SuperNova?
My estimate at this time the UI design will have about 50 pages.
I am looking for information only at this time. I expect the design to be ready in about a months or so.
Thank you for looking.