In order to make an application work in both iPhone & iPad then need to follow below steps.
- Before create an project please select universal in device section.
- In application: didFinishLaunchingWithOptions: put a condition to check the device.
- If the device is iPad then load the iPad screen and if the device is iPhone then load the iPhone screen.
- Make sure follow the MVC pattern, So that it is easy to populate the data in both the screens.