Model - Holds the state of the application and provides an API to access/filter/manipulate that data. Its concern is data encapsulation and management. It contains logic to structure, validate or compare different pieces of data that we call Domain Logic. It also notifies the view of any changes in the data...
View - Views are all the Widgets and Pages within the Flutter Application. These views may contain a "view controller" themselves, but that is still considered part of the view application tier...
A warning: We currently plan to move away from Firebase sometime in the future. This means that older app versions will stop working when this happens.