Гусьгусь is a free educational audio application designed for children, offered by Arzamas. The app features lectures, podcasts, fairy tales, and lullabies covering a wide range of topics such as history, astronomy, music, art, popular fiction like "Harry Potter," dinosaurs, and memes. Parents and kids can enjoy listening to these engaging contents on various occasions - on the way to school, before bedtime, during walks, or while traveling. The app also includes stories and lullabies for the little ones.

Users have the option to subscribe to gain access to all courses, podcasts, and materials available on Гусьгусь. Subscribers can bookmark tracks, courses, or podcasts for quick access, support the app's development, and enjoy an ad-free experience. New users are offered a two-week free trial to explore the app's content before committing to a subscription.

For subscription management and further details, the app facilitates in-app purchases through the App Store, with automatic renewal options and the ability to cancel subscriptions at any time. Users can find the user agreement and terms of use on Arzamas's official website.