A mobile browser game can feel just like a native app by supporting portrait...

https://hotel-wiki.win/index.php/Why_Does_My_Game_Feel_Different_After_Switching_Tabs_and_Coming_Back%3F

A mobile browser game can feel just like a native app by supporting portrait mode so you can play comfortably with one hand. Fast loading and caching make it ready to play quickly, even on slower connections