An extensively used system for developing different applications is Flex. Availability of its run time Adobe Integrated Runtime (AIR) and also Blink Gamer on mostly all commonly used web browsers likewise contribute to its vulnerability. Flex advancement from a Flex developer’s sight will most certainly have mixed point of views as just how a programmer locates it as a system totally differs depending on the skills, knowledge as well as experience. All those that remain in the internet application advancement area and have the routine of learning brand-new modern technologies would be able to answer why individuals should utilize Flex. The advantages of Flex clearly make Flex among the most effective application development systems. They are able to supply as they operate in a group as well as are able to receive assistance whenever stuck with some part of the growth.