Iphone App Like Fat Booth but for Botox

Looking to create an application just like fat booth but it will be for a similar product called botox where your skin gets more puffy instead of wider like fat booth does. Can you let me know a development cost and time frame for creating this application for the iphone(itunes store) only. I already have a developers id and store credentials in for my other apps and simply do not have the time to dedicate to creating this application. Developer needs to be competent, have made previous applications, and can help get this created without our team babysitting you.