We had a product plan consisting of over twenty educational apps in various segments. It took about a year to develop the framework for these apps based on machine kearning technology. We then released one to the App Store to gain some experience. And, based on that experience we decided to not spend another dime builing iOS native apps. We switched to web-based and in same cases even desktop native apps. And it was the right decision. Couldn't pay us enough to even consider the App store again. Apple is a horrible host for your products. You don't get to build a relationship with your customers. Apple controls your very existence. If you are doing a game like Clash of Clans perhaps it makes sense. Not sure it does for most other products. If Apple released stats on the "distribution of wealth" on the app store most developers would run away as fast as they could.
