App development is a process of applications development for computers, tablets, mobile phones, smartphones and smartwatches. 

Mobile applications become more popular. Development of mobile applications is a software creation which can operate on mobile devices. Already every second person spend 5 hours a day using smartphone. In business field mobile applications play significant role considering that they can ensure the further business growth. With mobile applications employees become mobile too! And their work aims to productivity. As the company workers have permanent access to corporate information, business processes go faster with the use of mobile applications. 

Besides, mobile applications let you be closer to your clients. They make services of the company available at any time. Apart from the advertisement, the mobile application forms company's image, gives information on the target audience and value of customer's behavioral factor. 

Application software engineers design and develop software applications, such as utility programs and general application software. They work with the user to determine needs and create software to meet user's needs. They modify existing software to fix problems, optimize functioning and enable its use on new hardware platforms.