Writing a native app, and not just a web wrapper, is a different skillset to writing a PWA. It’s not a quick conversion, it’s a whole new app from scratch and everything would be rewritten.
This is a superb PWA, and web apps will get better in each iOS release.
There are plenty of native apps to choose from if you want one.
Actually, as I understand it, wefwef is built using the Ionic framework, which has a really handy tool called Capacitor that lets you port over a web app to native really easily. It’s pretty neat!
That lets you access native device features from a webapp/website.
It doesn’t make a webapp a “native” app. It would still be exactly the same web based technologies - still a very fancy website. Not that there’s anything wrong with that. As wefwef is amazing