Словарь РЖЯ-112 is an Android-based video dictionary that provides a comprehensive guide to learning Russian Sign Language. It includes finger-spelling, gestures, and phrases that are commonly used in communication with deaf people. The app is designed for employees of emergency services, the police, healthcare, and other public services.

The dictionary is divided into four categories: General, Police and Traffic Police, Medicine and Emergency Services, and Fire and Emergency Services. The app provides a user-friendly interface, with clear and easy-to-follow videos that demonstrate each gesture and phrase. The videos are accompanied by written instructions, which make it easy to learn and practice.

Overall, Словарь РЖЯ-112 is an excellent app for anyone who wants to learn Russian Sign Language. It is an effective tool for building communication with the deaf and hearing-impaired, and it is a must-have for anyone working in public services.