Can I build an application with only html?
If an application's only purpose is to serve static web pages, then yes it is possible, but maybe not entirely practical, to build it with HTML only. Take for example Wikipedia, or any similar wiki engine. If we ignore for a moment that people can edit those pages, then it is pure html.
Yes but it would look like a skelerhon.and it would not run without js
Okkk thanks everybody
This has also been an interesting topic for me and I found this really interesting! https://www.hongkiat.com/blog/mobile-frameworks/
No u can't . Html is only used for creating website for building app u should learn c++ or java . Happy learning😊😊