Math Ninja AR is an educational app developed by Fantamstick Ltd. that aims to stimulate both the body and brain of children, enhancing their concentration and memory skills. This app has been ranked in the top 10 apps for 6 to 8-year-olds in 109 countries.

The concept behind Math Ninja AR is to provide children with experiences and math problems that they will never forget. By using the latest AR technology, kids can explore the 3D Ninja World and find the villager with the correct answer to the math question. This interactive gameplay encourages physical movements such as stretching, bending, squatting, crawling, reaching, and peering, which not only stimulate a child's memory but also provide an opportunity for easy exercise.

One of the highlights of Math Ninja AR is the newly added stage called "Ninja Tower" which offers additional challenges. Moreover, the app no longer includes in-app purchases, allowing more kids to enjoy the world of Math Ninja AR for free. Players can collect a total of 50 cards, each won after completing a stage.

With over 3 million downloads in Japan and more than 1 billion problems solved, Math Ninja AR has proven to be a big hit. It is a fun and engaging way for children to improve their math skills while also boosting their concentration and memory.