Мастер Ключ is a lifestyle app developed by Ростелеком for Android devices. It is a convenient service for managing residential complex territories. The app allows you to monitor staff and security on the premises, including children's playgrounds, parking lots, attics, and basements. With Мастер Ключ, you can view live online broadcasts and archives of video surveillance recordings, and provide access to cameras for residents and management company employees.

One of the main features of Мастер Ключ is the ability to connect an unlimited number of cameras and remotely view them in real-time from anywhere in the world. You can also access video recordings stored in the archive and receive intelligent notifications of all important events within the camera's field of view.