A mobile browser game can feel just like an app when it loads quickly using...

https://smoothdecorator.com/how-do-i-keep-the-same-features-on-mobile-without-cluttering-the-screen/

A mobile browser game can feel just like an app when it loads quickly using caching, plays smoothly without lag, and works well in portrait mode. Touch-friendly controls make it easy to play on phones, and consistent performance means fewer interruptions