HTML5 Offline storage can be used without an app. Part of the issue is not the storage, but how to run the app in the background to pre-fetch the content. Here'

HTML5 Offline storage can be used without an app. Part of the issue is not the storage, but how to run the app in the background to pre-fetch the content. Here's a table showing the limited access that hosted apps have. Looks like they do have access to certain device storage APIs, as well as desktop notifications, microphone, etc. https://developer.mozilla.org/en-US/Apps/Build/App_permissions https://developer.mozilla.org/en-US/Apps/Build/App_permissio... Here's another page comparing "packaged" to "hosted" apps which seems to imply they are mutually exclusive - https://developer.mozilla.org/en-US/Marketplace/Options/Packaged_or_hosted https://developer.mozilla.org/en-US/Marketplace/Options/Pack...