Update / rewrite old ios program using current design / os

Project is a pregancy dating app that was one of the first apps published. I will provide origianl code and all reference material. Most of the code depreciated 3 years ago (iOs 3.0). Current methodology is filesystem which leads to poor performance, so I think it needs to be completely rewritten using the old source material as a reference. Should use auto layout so same screen can be seen in different resolutions, and push and model transition. Must include support for iPad as well. I will provide link to app in iTunes store by private message if requested, as images will show current screens etc.