Yes, you can! If your Company is enrolled in the Apple Developer Enterprise Program (https://developer.apple.com/programs/ios/enterprise/), it's possible to use our app within your private network without publishing it to the Stores. Using your Apple Developer Enterprise Account we will build your app within 2 days without any review period! Usually, we distribute private apps by sending a link to a Web page, that can be opened in browser on a device, and where attendees can download and install the app.
If you're interested in this option, please let us know at email@example.com.