[jonaf]

Thanks! I never thought of it this way before, but I suppose there's no "set it and forget it" to selling on the app store if selling on the app store is your primary source of income, since you have to keep working to ensure the product remains relevant, gains new customers, etc. (Selling on the app store is decidedly not SaaS, after all.)

[incanus77]

Yep, exactly. Even the "greats" just relentlessly promote and keep their apps relevant. Even a one-day or one-week windfall from a viral launch will not sustain you over time.