Happy Meal Kartenspiele is a free Android app developed by McDonald's Deutschland LLC. It is a lifestyle app that provides additional features to the physical card games that come with the Happy Meal. The app uses Augmented Reality (AR) to bring the cards to life and add interactive animations to them.

To use the app, you need to install it on your smartphone or tablet and scan the AR markers on the cards. Once you scan the card, you can navigate through the AR world using simple gestures and your fingers. The app provides a "Start" button to launch one of the games, and there is a "Camera" or "Video" button to take photos or record videos. The app doesn't contain any ads and is specifically designed for children.

AR technology is used to create interactive animations that can be accessed through a smartphone or tablet. The app offers a range of AR features to explore, and the experience is both fun and educational. The app provides a menu to navigate between different modes and back to the main menu.

Overall, Happy Meal Kartenspiele is an excellent app for children to explore the world of AR and have fun with the Happy Meal card games. The app is easy to use and provides an engaging experience for children.