To download the Packaged app, navigate to download tab > select the package which has to be downloaded > Click on QR code > Scan QR code from your mobile devices.
You can download Android, Daydream inhouse packages by scanning QR code. You can view Web package also by scanning QR Code.
Note : Apple's guidelines requires user authentication to install inhouse package, so we cannot provide QR code installation feature for iOS inhouse package, however the link will navigate you to app packaging list from there you can download the iOS app in IOS devices only.
For web packages the web URL is embedded in the QR code and when you scan the same the Web URL will open the web package for you in the default web browser.