Conquer Matsuyama Castle is an educational app designed to promote tourism and enhance the experience of Matsuyama Castle, one of Japan's twelve remaining Castle Towers. By utilizing augmented reality (AR) technology, users can access rare historical footage and drone-captured videos by scanning designated AR spots in and around the castle.

The app offers AR content featuring videos about Matsuyama Castle and includes a unique speech bubble function for the castle character 'Yoshiaki-kun'. Additionally, users can explore AR spots and curator-recommended photo locations on the map. It is recommended to use the app on Android devices running version 6.0 or later, and users are advised to refrain from walking while using the app and to be mindful of data usage.