This is a preview to experience how your app would feel and work when converted to native. This is also how your app would be when we submit it to Google Play Store and/or Apple App store. The preview is limited becuase it doesn't have your App icon, you can only have 1 of these apps installed at a time and they can not be uploaded to to stores. For that you need our premium services. Premium services and native limited preview apps are only available for subscribers. Limited native previews are available for Apple iOS and Android devices.
To learn more about premium services check here
To learn more about native formats check here