The article discusses a software solution that addresses the integration of portable devices into the maintenance system of the Polish Air Force. In order to meet the requirements of this solution, it is essential to have a mobile device that can collaborate with military systems on a civilian network and process classified information. The current regulations and existing solutions suggest the need to establish a procedure for wireless data synchronization through the global Internet. The scope of this solution includes developing a method for exchanging data and ensuring data security. To enhance the project, we have also implemented a streamlined user authentication process. To achieve this, we tested the biometric sensors of the mobile device, which allowed for quick and convenient user verification without compromising the security of the processed information. In the paper, we have presented the design process of this solution, along with the final results. Furthermore, we have provided an example of its implementation as a mobile application designed for the pilot's portable device, which seamlessly integrates with the TURAWA flight safety analysis and assessment system.