I am regularly asked about developing web apps, like JibberJobber, or mobile apps (which I don’t have experience in, but am interested in). I found a really good post on Mashable titled 8 Things You Should Know Before building a Mobile App.
Lots of interesting tidbits in there…. the one that all my buddies need to pay attention to, first, is this:
Making an app will cost you, at the very minimum, around $10,000. This is for a super-simple program — none of that fancy enterprise or social networking jibber-jabber. Even still, any app worth its weight in code will likely cost you closer to $20,000.
Yes, you can do it for less, if you are a developer. If you aren’t, get out your wallet.
And remember, there’s maintenance… p0tentially lots of maintenance.