The higher revenues for onetime purchase show the weakness of subscriptions vs the old upgrade model, and I wish Apple would understand it. Subscriptions carry the fear of paying for something you won’t be using, or being nickel and dimed for years on end. Upgrades are a much simpler purchase decision. Am I using the app? Is it offering a good value? Does the upgrade provide new features I want or need at a reasonabl…
What does Apple need to understand? I don't believe there are any rules about publishing MyApp2.0 and then heavy advertising it in your previous versions.
More importantly, how do you charge upgrade pricing? Any user who encounters 2.0 on the store is charged the same price, whether they own 1.0 or not. There is no easy way to give 1.0 owners a discounted price.
There are elaborate kludges to work around these limitations with a great deal of work. Apple could make producing upgrade versions easy, like they’ve done with subscriptions, so devs can focus on improving their product value instead of purchasing mechanisms.