And would reducing the “tax” - what normal businesses call distribution expenses - to 10% change the equation?

There are doubtless cases where that extra slice of one-off revenue per customer would make all the difference in the world to the business model.

At the same time, I suspect that in most cases it would not change the business decisions being made. Recurring revenue matches the financial needs of a business better in most cases.

Which ones? Can you think of one category of apps that would not do recurring revenue ad sales and go to one time purchases?

Honestly I can’t think of one non game app that is ad supported without the option of turning off ads with an in app purchase or subscription.

I am not able to point concretely to any. As I am not possessed of sufficient internal fincancial information to evaluate the question, I am also not equipped to evaluate the question.

I do feel safe in suggesting that across all the apps of the world, there is a greater than 50% chance of there being at least one such application.