I also include in marketing generating word of mouth, good site, store SEO, and so on. But it is needed anyway, apps ( specially on iOS ) do not get traction a

I also include in marketing generating word of mouth, good site, store SEO, and so on. But it is needed anyway, apps ( specially on iOS ) do not get traction anymore by pure organic growth alone. For example: Apple removed the new app list from iTunes, and the search take in account popularity, so a new launched app has zero visibility.