Recent days, the IoT attracts as a major focus of the researcher’s community in the field of information technology. IoT growing rapidly as it is the collection of various technologies, methodologies and a variety of applications. IoT is the things that connected to the internet which can be able to interact with each other to achieve the desired goals. This includes the interconnection of several heterogeneous devices to be connected to the internet through some networking protocols. IoTdeals with the hugecollection of data as it is connecting the people, things, application and database. Thedata in IoT are collected from various sources, which is to be analyzed and to classify them. IoT has a wide area of applications including smart cities, smart building, vehicular networks, healthcareservices, military and agriculture. The research areas in IoT include authorization, authentication, secured communication, traffic management, and knowledge engineering. This paper reviews the recent implementations of various IoT applicationsand their research issues. © 2016, International Journal of Pharmacy and Technology. All rights reserved.