Not 100% sure, but I believe you’d need to transfer payment rights, or the person that makes the payments before you transfer the app. Anyone correct me if I’m wrong. @eve can you confirm?
The app owner will be the person paying for the app’s subscription; if you were the owner and you cancelled the subscription, you will be the only user with access to the app. However, you can certainly transfer an app to a new owner on a Hobby plan.