One thing not mentioned in the article is the engineering cost of altering the subscription and payment features of an app, so it's harder to AB test and experi

One thing not mentioned in the article is the engineering cost of altering the subscription and payment features of an app, so it's harder to AB test and experiment with new ways of pricing or things like paying for groups of apps together. Maybe Bloomberg has a lot more resources to throw at this but for a smaller company that has a hacked together or otherwise inflexible subscription system is a risky proposition. Breaking it for some portion of users can result in a lot of lost revenue and potentially effect your customers if the app downgrades/restricts them while you fix it. It's also often created early on, and moving to something like stripe which helps with a lot of this still incurs the risks above.