Agile development methodologies have been gaining their importance in the present scenario. The usage of agile methodologies has been increased over the past few years for the development of software applications. It is a new paradigm transdisplanary research area. This paper helps the researcher to get a better understanding of agile methodologies in both software and web engineering: introduction, adoption, usage and analysis of agile in both streams. The rest of the paper summarizes the differences in adopting agile in software engineering and web engineering and also it explains the limitations of using agile in software engineering and web engineering.