The interest in robotics has increased in the last years. Our interest here is in applications of robotics in education. This paper provides a road map regarding commercial social robots and open-source robotic (OSR) platforms, currently available in education. The aim is to review comparatively available robotics, according to their most recently reported applications in education. Recent literature is included regarding (a) analysis and evaluation of the effectiveness of robotics in education in terms of design specifications such as processors, sensors etc.,(b) advantages and drawbacks of various robots currently used in education in terms of cost, impact and usability and (c) future potential directions of interest concerning educational robotics. Our study indicates that an effective design of interactive and educational robots calls for robustness and standardization of both hardware and software. Novel modelling methodologies might be necessary. Future challenges in the field are also discussed.