A mobile app or mobile application is a computer program or software application designed to run on a mobile device such tablet,iphone,smartphone etc.
Hybrid apps for the platforms altogether with Xamarin, React Native, Ionic, Angular Mobile Sencha Touch etc.
Web apps as responsive versions of website to work on any mobile device.
A major category of business mobile applications are social media, the Web and outreach. With these types of mobile apps,Advertises itself through the Internet and in social media platforms like Twitter. These apps integrate customer feedback, but the vast majority of them are for improving brand visibility online and through a user’s device, for example, a tablet or smartphone.