Hi. I can do this project in about 20 days, will provide a working version every 3 days and get continuous feedback from you. The remaining 10 days or so will be left for testing the final app, debugging it, and optimizing it. My weapon of choice is Intel XDK, so you will have one code base for all the platforms, iOS, Android and Web Browsers. Please feel free to ask any questions.
Cheers,
Lilac