Once you've published a Koji App, you are able to edit the App without changing its URL. This allows you to make changes that go into effect instantly.
How to edit a Koji App
Open the Koji App you wish to edit or find it in your List of Apps.
Press the name of the App in the Title Bar at the top.
(optional) If an update is available for this App, press Update App to apply the new features to your App
Press Edit App
When you're finished, press Publish to save your changes.