The objective of this chapter is to briefly review the purpose and scope of the Internet of things technologies. After a concise introduction, general trends in applying IoT technologies in areas like logistics and transportation, industry, agriculture and environment, hospitality and leisure as well as healthcare are exposed. Irrespective of the field of application, the IoT devices require an appropriate onboarding platform. Such platforms are traditionally perceived as a cloud-based ones. Thus, they should provide an intuitive way of hardware and software integration. Moreover, they should provide a possibly flexible data access and visualisation means. Therefore, instead of deliberating about a possible hypothetic platforms, an existing and efficient one is employed within the framework of this book. It is called KIS.ME (Keep It Simple. Manage Everything) and it is a platform composed of IoT devices and the cloud-based system, which can be efficiently integrated during an intuitive onboarding procedure. It is also indicated how to use it for a wide spectrum of advanced applications.