Hey all,

I first delved into app development in March 09, since then I've allocate time every now and then and have so far published 4 apps; either for myself or some local businesses/personalities. My apps are pretty solid and polished, I am by no means a 'dirty dev'; you know the type that puts solid label backgrounds on other-colored views or those that completely disregard aspect ratios.

Anyway, I've found a nice opportunity to develop an app for some older, well-off businessmen. This is a project that I'll probably take up alongside with two other developers. It is sort of a pet/experimental side project for these gentlemen as it is by no means related to their field of expertise (banking). It will be sort of a 'closed app,' no server backend needs or user management, etc. We're coming up with a proposal and I'm trying to approximate a rate or cost, and I do not want to be shy about it.

So I was wondering, how do you all calculate group development costs or developer rate? Assuming, this is a 3-4 month long 6hrs/day project, what might the developer rate be? I understand this is tough to estimate, but I at least want to know what the order of magnitude will be.