Hire an App Developer

My name is Hannah and I run a company called Milo which centres around a child's toy I've designed. Milo offers a child a simple way to stay in touch with an absent loved one using two way video messages and a treasure hunt game. To find out more take a look at www.milotoy.co.uk. Currently I have a prototype that looks like the intended design but does not function. I'm looking to create an app to simulate the digital function of the toy. A phone (preferably iPhone) running this app could then be placed within a plastic shell to provide the visual appearance of Milo. I am looking for the project to be completed within a reasonable time though this can be negotiated.