Develop a Mac Application

Game App developer - for Apple and Android I need to hire someone to work with my 14 year old son on developing a game app for both Apple and Android. He will be the lead and has some coding expereince but has not used Unity before so the project is to help him develop his game as well as teach him along the way. He will only have about 5 hrs a week to spend on project so the bulk of the coding and setup will need to be done by your team. I'm open to platforms. I need 2 quotes, one for project completion and one for monthly maintenace of updates. Example of game style and type - color, 2d, single player, in app purchases, puzzle type game. NDA will need to be signed.