On Android I am able to give a customer an APK, they can then take the APK and publish it to the Google Play Store under their Google Play Console Account. This allows my customer to not have to know how to produce an APK to publish to the Google Play Store.
I'm not as familiar with iOS Development but it seems I do not have this option. I can only publish to App Store Connect via Xcode or create a Distributable App that I can deliver to my own customers via Xcode. I want to be able to hand my customer the App in a publishable form and then allow them to publish under their own Apple Developer Account without having to use Xcode or any other developer tools besides the https://appstoreconnect.apple.com/. What is the best way to accomplish this?
If this is not accomplishable what is the best way I can organize this for the company that will not require them to have an iOS Developer on hand?