ワンダーボックス WonderBox is an Android app for 4-10-year-old kids, designed to stimulate their intellectual growth through monthly educational materials. This app is part of a communication education service that requires official registration from the website to use. The program nurtures children's three Cs: Critical thinking, creativity, and curiosity. It consists of a combination of digital and analog materials that provide a new sensory experience. This app aims to help children develop a foundation in STEAM areas, including Science, Technology, Engineering, Art, and Mathematics. The app has a variety of themes that cultivate interest in various aspects of the world. This app is ideal for parents who want to provide their children with learning opportunities and experiences while playing.