Куршская коса is a free Android app by grad39.ru that serves as a personal guide to the Kurshskaya Kosa National Park in the Kaliningrad region. Whether you're planning to visit the park or want to explore its unique places from home, this app provides an immersive experience with its comprehensive audio, video, photo, and text guides. The app has a user-friendly interface optimized for both smartphones and tablets, with navigation features such as turn-by-turn directions and maps that display your progress. You can even use QR codes and NFC tags to access information inside buildings.

One of the standout features of the app is its voice-guided tours, which come in both male and female voices. The app also uses GPS and GLONASS to provide accurate location-based information and context-specific details. The app does not require an internet connection, so you won't have to worry about data usage while exploring the park. However, using the app in the background for extended periods may drain your battery faster.

Overall, Куршская коса is an excellent app for anyone interested in exploring the Kurshskaya Kosa National Park. The app has plans to expand its features, including fitness functions for walks and support for social media.