This thesis describes the development of a mobile application designed to boost community engagement within mosque communities. Users can access information about various mosques registered on the platform, including prayer times, messages, FAQs, and descriptions. They can also subscribe to different mosques to receive notifications and stay connected with their mosque community. Mosque imams, who manage their respective mosque profiles, have full control over updating and maintaining their information. The application is intended for deployment in Hungary and other European countries, and to accommodate diverse users, it is available in three languages: English, German, and Hungarian.