Most MVPs are not minimum. Start from the riskiest assumption, not the feature list - plus the specific things we cut first, the things we never cut, and why the weeks after launch are what you actually paid for.
One architectural difference explains almost everything else. What each model actually costs you, which arguments are noise, and how we decide on real projects.
What actually drives the number, a rough method to size your own project before talking to anyone, and how to tell a real quote from a fictional one.
An honest comparison from a team that ships in Flutter - including the cases where we would tell you to choose something else, and the variables that actually drive a mobile budget.