Buid two 2-4 page Android app Or php website

I would like to create 2-5 page app or php wesite My requirements 1. Login using gmail or mobile 2. Aceess user's contact and with user's permission can invite his contact to app, user get reward upto rs 200 free brokerage, (track who join and deposit reward, non joinee can be send reminders), Dash board of reward got, invitation sent, no of people join, not join 3. Main page Angel api use Display Bank nifty and nifty chart on top of page Below two buttons up or down and two text box for target stop loss On clicking up buy order with said stoploss and target for nifty or bank nifty will be sent to angel account On licking sellbuy order with said stoploss and target for nifty or bank nifty will be sent to angel account(Note first buy or sell order will go and then once that is executed target and stop loss will be sent on hiting target sl will be cancelled and on hitting sl target will be cancelled) Selling and buying price should be base on Black-Scholes option price ([login to view URL]) Also show profit and loss in app as well. Need have good design skills.