A system of acquisition of information on indoor radon concentration was developed. The system is based on the transfer of devices for integral and/or quasi-integral measurements of radon concentration to the owner of the premises and the exchange of necessary information about the conditions and measurement results between the owner and the measuring laboratory using modern online technology. The information support system implemented on the website and the use of mobile communication technologies are designed to attract additional measurement participants and expand the range of objects available for surveys. At the same time, intermediaries between the measuring laboratory and the owner of the premises are excluded. The use of cloud technologies makes it possible to optimize the exchange of information between participants, and the use of QR codes on detectors eliminates errors associated with the identification of the detector and its coordinate reference to the measurement point. The software modules used in the system automate the process of entering this information. It is assumed that devices with a track detector will be used as the main ones. It is also possible to use carbon-adsorption samplers, but only for measurements in settlements, from which delivery to the processing laboratory is possible within no more than one day. Testing of the possibility of practical use of the system by persons who are not specialists in the field of radiation control was carried out on examples of a small and large settlement (the village of Kochubeyevskaya and the city of Pyatigorsk, Stavropol Krai). In general, the testing showed the operability of the system. As a result, changes were made to the system: the size of QR codes was increased and their color palette was changed, and the supporting system was supplemented with information on entering the editing mode without a QR code. From a social point of view, the system provides economically affordable services for most citizens to determine the level of radon exposure in the air of residential, public and other buildings. At the same time, in the future, significant savings are achieved in budget allocations required to create a potential radon risk map of the country. © 2022, Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev. All rights reserved.