Create quiz app for iphone and Android

Hi, I want to create a quiz app for both platforms. The quiz questions will be in categories and so players can opt to play each category on its own or to mix n match categories. Also, the app will keep scores when each category is finished. And when the user attempts all the categories, they can then submit their scores to some score management. I already have single category quizzes on the market and so this version will simply take the designs and modify it to deliver the new app. Please only bid if you can do both versions. You must be able to deliver the project within a week as I dont expect it to take long for someone who knows what they are doing. Lastly, my budget is extremely low so if you cant do it for a very low price, please don't waste your time bidding Happy bidding