If the app is a singular product that only exists on mobile, then fine you bake the Apple/Google tax into your price.

for content subscription businesses that are multi-platform its a bit of an absurd situation. You can't really charge 50% more on mobile platforms. Depending on where your user randomly decides to sign up your revenue and lifetime value of that user is suddenly 2/3rds of what it otherwise would be, despite costs being the same.