Classic snake development for Android and iPhone

We are interested in developing a version of the classic snake game in a free and premium version. Free version must support/integrate banners and content unlocker ad serving SDK from [login to view URL] Example of snake game online [login to view URL] Details of features need: * Gameplay as per snake game * Graphically rich UI * Support for navigation by tilting device * Including up to 10 levels at minimum of increasing difficulty * Including 3 user levels (novice, expert, champion) * Choice of themes, environments to play in * Provide an array of objects to collect/avoid * Support for tracking individual high scores * Range of Sound effects * Android, iphone, ipad versions * Free version and premium version * Free version that supports ads Please provide a very rough description of previous projects, development time and price estimate. Skills Android, iPad, iOS, Game Development, Game Programming