Build a website, build an app for iPhone

Want to build a safe and secured website where users will provide their banking information and credit cards. Need to be able to transfer money from and to user accounts. The site will group people based on three questions: How much you want to deposit? 1- $25, $50, $100, $250, $500 How often? Weekly, Biweekly, Monthly How soon do you want the money? (e.g. now, in 1,2,3,4,5,6,7,8,9, 10, 11 months) Users will be grouped into similar deposit amounts and frequency of deposit. They will also be grouped by who needs the money now with those who need it later. Users should have the ability to establish their own groups and invite others. Should have the ability to synchronize with contacts. Able to send notifications and messages. This eventually will be connected to an app.