I build with Kotlin, Flutter and React. The choice depends on what each app needs, not on what is popular.
When Kotlin wins
For apps that lean on Android itself, like background work and notifications, native Kotlin gives the most control and the best performance.
When Flutter wins
For focused utilities where speed of building matters, Flutter lets me ship one polished codebase quickly.
Where React fits
Websites, landing pages and dashboards around the apps are built in React, so everything feels like one product.
