Hi there, A Mobile application is an application that runs on a mobile device such cellphone, iPad ... There are many utility fields such as geolocalization : locating restaurant, shopping spaces around you ... Mobile development depends on the device in which you application will run and the operating system it is using ... so tutorials should be associated to Mobile operating system (android, iOS, window mobile ...). you should first of all choose a mobile operating system then try to google some tutorials on it ... Regards.