Маячок Дневник.ру is a free Android application developed by Dnevnik.ru. The app allows children to share their location with their parents, ensuring their safety and peace of mind. With this app, children can focus on studying or enjoying their free time without being distracted by calls or messages from their parents.

In case of an emergency, children can quickly call the assigned emergency number or find the contact information for the main emergency services. Meanwhile, parents will already know where to go to help their children. The location data is only accessible to parents who are registered in the Dnevnik.ru system.

It is important to note that the app may use the device's location data, even when it is closed, which may reduce the device's battery life. Overall, Маячок Дневник.ру is a useful application for parents who want to keep their children safe and secure.