Advantages :
* It can be accessed via the original application you have installed on your mobile device.
* It provides the full advantage of all device features such as camera, GPS, accelerometer, compass, list of contacts, etc.
* You can use the device's notification system and work offline.
* It is built in a way to provides the best user experience.
* As it is found in the App Store, so redistribution is easy.
Drawbacks :
* The creation cost of these types of applications is very high.
* The maintenance is also very high.
