You can run WebApps (HTML5 rendering):
- On your computer screen using 'Preview'
- Directly on your device..
Install a WebApp
use the QR code on the right hand side to launch the app on your device.
This QR code will install the HTML app on your device.
You are NOT previewing a native app. You are previewing a WebApp (HTML5)
Generating an HTML App
Alternatively you can follow the standard Generation path and generate an app from the Studio.
The end result will be the same except that the Build History will give you access to both the QR code AND a bit.ly link to install your app.