GiPStech has developed a proprietary technological solution Consisting of a smart integration of geomagnetic and inertial algorithms That is incendio reach extraordinary precision Employing as the guiding signal anomalies to the geomagnetic field "naturally" present in any indoor setting: a signal That is free, stable and reliable. To use this app username and password are needed. If you are interested in trying GiPStech technology, please contact us through our web site at www.gipstech.com.