I currently have 4 parking apps, and 2 ev charging apps on my phone. None of those have a Web version when you can clearly see that most of their ui is webview based. They could have been bookmarks indeed.
100% agree. Except it would be nice to have a notification, reminding you that the meter is running. And on iOS, you need to install a web app before it can send notifications, defeating the point of not having to install anything.