@dansup it's nice but at some extend you still install an app just a web app once a particular page reaches a certain complexity.
It does look functional but ux wise it will look allien.
I appreciate thou that especially for things I only use occasionally or are so small that an app would be to much that these pages exist.
Recently #edenred enforced that you have to use their app to do anything with lunch card for a website I only used maybe a few times a month.