A key issue for companies is the mobile versus app debate, and whether there is an argument for producing a mobile application over a mobile site.
There are clear arguments for both applications and mobile sites. While some companies believe that mobile development priorities should be focused on either a mobile site or an application, the reality is that consumers are using both channels, so an integrated approach is the optimal solution.
via The fight gets technical: mobile apps vs. mobile sites | Econsultancy.