mobile app.. i need mobile app for stock trading, like gold, s | freelance

mobile app..
i need mobile app for stock trading, like gold, silver and metal..also currencies !!
first i need to know what you need from me to provide such thing also your price and it must be very secured for any trades that happen in it..!! for both android and iphone users..
Skills required
Android, iPhone, Mobile App Development
10USD - 2000USD
amrsakrdesign from Cairo , Egypt