One of the major advantages of mobile apps over websites is the fact that apps can take advantage of the hardware sensors embedded in mobile devices - most notably locational sensors such as GPS. How could a location-aware app help your customers?
Apps are great where the location of the mobile device is not necessarily in range of a mobile network. Many apps can run without the network and then synchronise later when a netwrk is available again.
Apps can also provide a faster and slicker interface to the user than a web-page can.
Mobile devices are a new marketing channel. Read our article about mobile marketing.