Mobile view doesn’t work and index.html is not responsive

Squarefolio html version , finance , the index file is nit responsive in mobile view for ios and android bith safari and chrome while met is set correctly

In chrome developer mobile view it works but not in mobile itself

It just shows the slider and not the whole page
This is the demo if you can see it is different in computer and mobile view

This is the demo :

The point is that wp one works but I don’t want to oay another 50 usd for wp while the html one is available

Anyone has any fix for that or any idea ?

I’m appreciated before giving your opinion, first take a 30 seconds look to understand what is the problem.