We’ve moved away from Losant Go as a recommended approach for mobile access to your devices. For custom experiences, mobile or otherwise, we now recommended Kiln.
Kiln provides user authentication and custom API endpoints specific to whatever it is that you may be building. You would then us something like React Native, or a native iOS or Android app, to build a custom mobile user interface that communicates with your Kiln API endpoints. We have a detailed walkthrough available that demonstrates most of this functionality.
This allows you to build the exact mobile experience you require with Losant handling all API and user authentication that powers it.