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Why mobile app development is not easy?

Mobile application development is the act or process of developing mobile applications for mobile devices (for example, personal digital assistants, corporate digital assistants, or mobile phones). These applications can be installed on the phone on the manufacturing platform. Due to the fierce competition of mobile software and the changes of each platform, application software developers must also consider various screen sizes, hardware specifications and configurations. The development of mobile applications, revenues and jobs created have been steadily increasing.

The 2013 analyst report estimated that there were 529,000 direct application economic jobs within the EU, and then 28 members (including the UK), of which 60% were mobile application developers.

As part of the development process, mobile user interface (UI) design is also critical to creating mobile applications. Mobile UI treats constraints, context, screen, input, and mobility as a design overview. Users are usually the focus of interaction with their devices, and the interface requires hardware and software components. User input allows the user to manipulate the system, while the output of the device allows the system to indicate the effect of the user’s manipulation. The constraints of mobile UI design include limited attention and form factors, such as the screen size of a mobile device user’s hand. The mobile UI context emits prompt signals from user activities, such as the location and scheduling that can be displayed from user interactions within the mobile application. Overall, the main goal of mobile UI design is to provide an easy-to-understand, user-friendly interface. The UI of a mobile application should: Consider the user’s limited attention, minimize keystrokes, and be task-oriented with the smallest feature set. Mobile enterprise application platform or integrated development environment supports this feature

The mobile UI or front end relies on the mobile back end to support access to enterprise systems. The mobile backend facilitates data routing, security, authentication, authorization, offline work, and service orchestration. Hybrid middleware components (including mobile application servers, mobile back-end as a service (MBaaS) and service-oriented architecture (SOA)) infrastructure support this functionality.

For many companies, the development of mobile applications has become more and more critical. As of 2019, the number of people using smartphones worldwide has exceeded 3 billion, and the number of people using tablets has exceeded 1.5 billion. On average, users spend 90% of their mobile time on apps, and over 700 millions of apps downloaded from various app stores.