Preview

What it is

The Preview button in the top bar. Its tip says Open the app exactly as it would be published — nothing is uploaded and no phone is touched.

What to enter

Nothing to enter. It is a button you press.

What it changes

It shows the app as it would look after a deploy, as one of the people in the project. Nothing is uploaded. Nothing in the house changes. Nothing in the app changes.

If it goes wrong

Add at least one person in the Users step first means there is nobody to preview as. If the app template cannot be loaded, it says so. Identifying devices… is shown once for a project; A few references need attention means something points at a device that is gone, and Deploy will name it.