Email style app for ios

I am seeking a developer to program a pseudo email client for IOS. The app will get data from an api for which you will get detailed documentation, the data to the ios app will be served in JSON format. The app should look like the standard iphone email client and should have the standard mail client functionality and the functionality stated below (every thing from sending mail to tagging messages etc. is done via the api, the app should not communicate with real mail servers all functionality is provided by the api which we provide to you). * Present a list of ermail message threads date,sender,subject, associated customer. * Be able to send email messages (through the api) . * Refresh the list of available email messages through background process or similar, to maximize the responsiveness of the application. * Be able to assign "labels" to the individual messages in each thread. * be able to browse labels, to see which messages is under certain lables. * be able to search locally through email messages downloaded and/or through the api. * be able to create accounts with the app, in order to login = login to the api in order to receive data for the user. The project should be delivered with all source code and graphics so it, if needed, can be incorporated into other projects. API documentation will be provided to the freelancer who get the project.