iphone App Client

Hello, we are a small company from germany and we are looking for a small software team or an excellent developer. At the first round, we just need an approx. pricing. Please write in your comment: - If you have some reference Apps - If you want to code native Code or would recommend a cross-plattform solution and of course which one. The basic task of the app is to see offers by others, search for offers by few criterias, browse categories. An offer has some textinformation and a picture taken by the device. Also there has to be an registrationprocess. All Server tasks will be done by use: you get a stable API! 1) User registration with username, password, email and possibility to login with facebook 2) Create an offer (tage picture, few textfields), 3) View and search offers, categorieoverview 4) Simple messages system For a real life example please download the "kleiderkreisel" app or see a youtube clip. for example: [login to view URL] Please send an APPROX. PRICING. Detailed pricing will be discussed, after we send you the full specifications. thank you.