Private app but still accessible from other browsers

Hi,

I would like to keep my app private until I decide to publish it.

On my app settings, the “app rights” are set as private.

However, when I click on preview and then copy the link to a different browser (that is not logged in to my Bubble account) The app is working - Which means it’s accessible to anyone.

How can I keep it private?

Thanks

Set a password on the Settings page.