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                                                         App Development










                           Chapter Profile
                             What is an App?                                     Defining Android and iOS
                             Types of Mobile Apps                                Categories of Apps
                             Downloading and Installing an App                   Developing an App





                  With the advancement in technology, smartphones play an important role in our daily lives.

                  Although their primary function is telecommunication, smartphones now support a variety of
                  apps that enable tasks once considered unimaginable on these devices. You can perform various
                  tasks on smartphones, such as bill payments, shopping, video calling, messaging, and playing
                  games.

                      WHAT IS AN APP?

                  An app is a software program primarily developed for hand-held smart devices such as mobiles
                  and tablets. It helps the user perform their personal and professional tasks more effectively.
                  "App" is a modern term derived from the word "application." Thousands of apps are available
                  for smart devices. Most of the apps are freely downloadable from the app store. However, some
                  of the apps need to be purchased.

                  The three most popular app stores are Google's Play Store, Apple's App Store, and Microsoft
                  Store. Note that the Microsoft Store is not used for mobile devices but can be accessed to
                  download apps for computers.
                  There are mainly three types of applications, which are as follows:

                      Desktop Applications: The applications that are mainly developed for a computer or laptop
                     are called desktop applications. These type of applications depend on the hardware and
                     operating system on which they run. They are usually developed for a particular operating
                     system. Some examples of desktop applications are Paint, Notepad, and Word.
                      Mobile Applications: Mobile applications (also known as mobile apps) are software programs

                     that are developed for hand-held devices such as smartphones and tablets. These apps
                     are  installed and  run  on the  device itself. Some examples of mobile apps are  Snapchat,
                     Google Meet, and Facebook Messenger.


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