Creating applications for Android and iOS

An application whose home page will be just a banner that changes automatically, at the bottom of the screen is a search bar that the search engine opens.
Create a search according to 10 criteria, the ability to put some ads in the top!
Add a button to your favorite ad.
Inside each ad is like a postcard with photos and description, phone number and geolocation of the object.
Client base: when you open the application, asks you to enter a phone number for a fuller version, if you miss a step, then phone numbers
Hidden.
Press the number, asks to enter your number.
Ability to add content