I would like to add… you can make any page into a iOS “App” when saving the page to the Homescreen. Only downside all links open up in Safari again. But as Hype-Exports are single pages that shouldn’t be a problem. Also Hype offers a HTML5 type manifest. With some programming your App can run offline once it’s cached.
Hype is a versatile beast that can be used in so many ways that your way of using it is just one of them. So like with the supports for ads (exporter scripts) Tumult must see the value in this to grow it’s user base around the main program. Furthermore there are a lot of enterprise solutions out there (costly) that just already do the job of connecting HQ with field/sales agents. Assuming your willing to pay the buck (but then we are talking enterprise here)… I am more then certain that there is a solution waiting for those enterprise problems but that is a different topic.
Beyond that it really is a completely other app then Hype as your requesting a generic app that can connect to multiple hosts (cloud, ftp etc.) with many custom browser management settings (kiosk etc.). And if you think the app wouldn’t have to be so generic then your actually only requesting a solution that fits your single problem set (specific server backend, specific look of the kiosk).
And to end on a positive note… using something like the wrapper in the initial suggestion gives you a head start on a native app-wrapper you can develop with just those custom backend and caching requirements and apple even helps with the deployment: https://developer.apple.com/programs/volume/b2b/
PS: Yes only a request but this a discussion forum and we (or at least I) love to discuss.