Playing a browser game on your phone can feel just like a native app because it...

https://punssmile.com/what-makes-a-mobile-browser-game-feel-like-a-native-app/

Playing a browser game on your phone can feel just like a native app because it loads quickly and remembers your progress through caching. The game works smoothly in portrait mode and uses touch-friendly controls designed for easy tapping and swiping