The flutter vs native startup MVP debate is mostly a religious war fought by engineers with no skin in the game. For a startup founder, the answer is almost always the same — but the exceptions matter, because picking wrong in the first 2–4 weeks adds either three months of timeline or one full rewrite by year two. This is the kind of startup mobile stack decision that quietly determines whether your codebase survives month 18.

This is the flutter vs native startup MVP decision framework I use with founders, stripped of ideology, organised around the question that actually matters: which choice produces a codebase still alive in 24 months . It's a mobile framework choice that gets discussed badly almost everywhere else.

The default answer in 2026: Flutter

For the flutter vs native startup MVP question — defined as a product validating a business hypothesis on iOS and Android with a small team — Flutter is the default in 2026. The reasons aren't controversial:

One codebase, two stores.…