I can convert any website to Android app quickly.

For App conversion your website should have following features

1) Responsive Design
2) Should rendered perfectly in all screen size

Your website will looks same in app as you can see in mobile browser

If you site is not responsive then you check this gig

https://studio.envato.com/explore/mobile-design-development/9710-make-existing-wordpress-site-responsive

For website to IOS app please check below service
https://studio.envato.com/explore/app-development/39161-website-to-ios-ipad-app

Portfolio:

ANDROID:
https://play.google.com/store/apps/details?id=com.instansound
https://play.google.com/store/apps/details?id=com.kohthai
https://play.google.com/store/apps/details?id=com.drynkmewebview
https://play.google.com/store/apps/details?id=com.hot243
https://play.google.com/store/apps/details?id=com.cic_construction
https://play.google.com/store/apps/details?id=com.mygamer
https://play.google.com/store/apps/details?id=com.turn2tek