Preview the app in the designer or on an iOS or Android device.
Install the Preview App on the mobile device if you want to test full native functionality.
- Save all changes in the designer.
- Preview in the designer, or continue to preview on a device.
- Open the Preview App and log in to the target org.
- In the designer, select Preview, and scan the QR code with the device camera.
- To load later changes, save in the designer and refresh from the app menu on the device.