iOS Bingo game (70 % already developed, to be completed)

We are a software development company. We released and maintain various products from games, to utility, to navigation on iOS, Android, Windows, OS X and related web services. This project is about completing (finishing and adding features) to an existing Bingo game. The design exist and the application is functional. It was developed in Objective-C on iOS with ARC. We are using mainly Core Animation and Text to Speech for the game. The work to be completed is as follow : - Add sound effects (from copyright free sounds, to be found on internet) - Add subscription in-app purchase for game monetization that will unlock features - Complete settings menu with all options and link options to the functionalities - Fine tune animations of the game - Fine tune design and colors of the Bingo cards - Fine tune PDF document generation by adding logo, url link and watermark to existing document We provide : - Current source code and Xcode project - Accurate specifications and detailed feature list - Technical and design advices as we are also iOS software developers (Senior level) - Graphics and logos - Code reviews and feedback We expect : - A developer willing to go the extra mile to deliver a top notch product - Clean and maintainable code (as we have a roadmap for this product) - Excellent communication - Proactive, quality oriented work from the Freelancer - Product delivered in a timely manner If we are satisfied with the game completion, we will rehire the same freelancer for release 2 and 3.