15th 'App Koshien' Finals: Unleashing Student Creativity Through Technology

Unleashing the Next Generation of Creatives through the 15th 'App Koshien'

On November 16, 2025, the final event of the 15th annual 'App Koshien' will take place, marking a milestone for middle and high school students aspiring to explore the world of app development. Co-hosted by Marui Group and Life is Tech, this competition aims to discover and support the next generation of young creators.

What is 'App Koshien'?

Launched in 2011, 'App Koshien' is a nationwide app development contest catering to middle and high school students. The event focuses on uncovering and nurturing future talent, encouraging participants to use their creativity in technology. Marui Group emphasizes its commitment to creating a future driven by the interests of young individuals under the motto of generating impactful changes alongside the youth.

The essence of the competition lies in three core themes: creating an economy driven by individual passions, fostering a society where work leads to flow, and collaboratively shaping the future with the next generation. As part of this mission, Marui Group’s involvement in the 'App Koshien' reinforces its focus on impactful initiatives.

Exciting Finals Event

During the finals on November 16, twelve finalists from both the General Development and AI Development categories will come together to showcase their remarkable apps. This live presentation allows students to demonstrate innovative solutions to real-world challenges posed by sponsoring companies, providing fresh perspectives on leveraging technology in daily life.

Additionally, the event will host an awards ceremony for the 'Ideas Division', recognizing creative proposals generated to solve specific issues presented by corporate sponsors. Attendees can also look forward to engaging talks with finalists, offering insights into their backgrounds and inspirations. The event aims to motivate budding creatives and encourage them to pursue their innovative projects.

List of Finalists (Excluding Titles, Arranged Alphabetically)

General Development Category

1. Bellmy
- Leader: Momoko Kikuchi (High School Senior)
- An app that emulates the experience of using a pager from the 1990s, bringing nostalgic joy to older generations while providing a unique experience to younger users.

2. good!
- Leader: Kaito Takahashi (Middle School Junior)
- This app helps users express appreciation or compliments conveniently through emojis and brief messages, eliminating awkwardness experienced in direct communications.

3. DOME
- Leaders: Keishi Nakamoto and Kazu Ichikawa (Technical High School Seniors)
- A digital transformation app designed to streamline dormitory life, allowing students to manage various administrative tasks through their smartphones efficiently.

4. Sentence Builder
- Leader: Masahiro Hazutani (High School Sophomore)
- A learning app utilizing drag-and-drop functionality for English grammar, making it easier for users of all ages to grasp fundamental linguistic concepts intuitively.

5. Mimamori Compass
- Leader: Taiyo Mizuno (Middle School Junior)
- A QR code-based system for monitoring elderly individuals, ensuring safe and anonymous location tracking to prevent potential issues.

6. Paper CAD
- Leader: Koda Miyazaki (High School Sophomore)
- An innovative web CAD application that transforms 3D building designs into 2D templates, simplifying the modeling process for enthusiasts at any skill level.

7. monoful
- Leader: Yuko Muruyama (High School Sophomore)
- An app that allows users to create personalized calendars through selective color highlighting in photographs, altering their perspective of everyday surroundings.

8. Wan-Nyan Match
- Leader: Kanon Yoshida (High School Sophomore)
- A pet adoption app that employs AI diagnostics and AR capabilities to facilitate the successful matching of stray animals with suitable homes.

AI Development Category

1. HimoToku
- Leader: Yuki Otake (High School Sophomore)
- This interactive English learning app utilizes AI to provide instant feedback on translation exercises from students' textbooks or reference materials.

2. Neureka!
- Leader: Naoki Ohira (Middle School Junior)
- A learning app where users can upload images of notes, and AI will generate podcasts and flashcards, making the understanding of complex topics simpler.

3. InfoNode
- Leaders: Kenta Nishijima (High School Freshman) and Shota Tomiyama (High School Sophomore)
- A knowledge-sharing tool that enables users to uncover and visualize related content through AI, facilitating collaborative research and creativity.

4. Mathmosis
- Leader: Daichi Minami (Technical High School Sophomore)
- An AI math assistant application for tablets that helps students learn algebra through real-time problem-solving interaction, enabling personalized study sessions.

Event Details

- Date: November 16, 2025, from 12:45 PM to 5:45 PM (Doors open at 11:45 AM)
- Location: TODA Hall & Conference Tokyo, Hall A
- Content:

- Presentations by finalists
- Announcement of winners for first place, second place, and corporate awards

Please note that event details may change without prior notice and entry regulations may apply depending on the situation.