Maybe, but we pay notably more to outsource than we were previously paying for in-house dev; it works better at our scale - our client apps probably merit like 1 FTE developer, and it's easier to get appropriate expertise for mobile app development from a third party that specializes in that rather than trying to maintain it in-house, or by spreading the pain of Apple provisioning profiles and app store review, etc. among a team of non-mobile devs.