Hey mate,
I would like to work on your iPhone/iPad app.
Even for a "simple game", your budget is quite low to develop an app. However, can you let me know more details about your app and your requirements and I will see whether I can work within your budget. After reviewing your full app requirements, I will let you know whether I cannot create the app within your budget, but will also give you a better estimate to develop your app.
Please feel free to contact me to discuss this further.
Kind Regards,
Canon