Will the APK application be developed for the community?

They have put great effort into making the theme responsive and work on mobile exactly to avoid having to make native apps. Or that's what I remember reading at least.

I doubt you'll ever see an android/ios application officialy developed. Most peoples used to install tapatalk on 3.x as mobile app, but nowadays I see many of them dropping it since the application has become really bad and causes a  lot of issues all around. Also thanks to the 4.x themes being responsive.

 

P.S.: this is not the right forum to post the question in btw ?

There is a user here, @BariatricPal who is developing a mobile app and it is currently in closed beta I think...

That being said, like @teraßyte mentioned, IPS is responsive, so it will display correctly on mobile devices. Another downside to consider is addons can't be supported in a mobile app.