These numbers are useless. Things to keep in mind:

- This research is provided by a company that sells an app marketing service.

- No detail on methodology and how value was assessed. Are part time/garage developers tallying their opportunity cost? Multiplying their hours spent by an idealized consulting rate? What about free/low cost apps that leverage an existing paid service? How does that fit in? What about long-term ad revenue?

- Reported backing evidence is anecdotal.