Qubena Learning e-Portal + AI Adaptive Learning Material

COMPASS Inc. is a Tokyo-based edtech company in Bunkyo-ku, led by Representative Director Jun Sato. It develops Qubena, a learning e-portal combined with AI-based teaching material for public elementary and junior high schools, aiming to deliver personalised learning in ordinary classrooms. Qubena is used in about 2,300 schools across more than 170 municipalities, with over 1 million users and more than 3 billion cumulative answers.

The AI analyses each student's learning status and proficiency and automatically assigns the most suitable problems, regardless of grade level, in maths, English, Japanese, science and social studies. Content follows each publisher's textbook order, around 60% of answers are handwritten, and drawing and speaking exercises are supported. Teachers see student, class and school data on a dashboard, grading and tallying are automated, and the portal links to the national MEXCBT testing system and to digital textbooks.

• Adaptive question engine: AI selects optimal problems from each student's proficiency.
• Five subjects: maths, English, Japanese, science and social studies for grades 1 to 9.
• Handwriting and speaking input: handwritten answers, drawing tools and speaking exercises.
• Teacher dashboard: learning data by student, class and school.
• Learning e-portal: MEXCBT test support and links with digital textbooks.
• Starter edition: curated features for first-time municipalities with an upgrade path.

• Provincial education departments in Vietnam piloting adaptive maths and English practice in lower secondary schools.
• Private school systems using handwriting-based AI drills with teacher dashboards.
• Textbook publishers partnering to link digital textbooks with adaptive exercises.

• Personalised practice at scale: AI picks problems by proficiency, so mixed-ability classes progress at their own pace.
• Less teacher workload: automatic grading and data tallying, as cited by Fukuoka City.
• Low entry cost: the Starter edition costs 1,320 yen per account per year with a free trial for new municipalities.
• Curriculum fit: questions follow each textbook's chapter order and connect to national CBT tests.

Governments that have equipped every student with a device now look for content that uses those devices for personalised practice and assessment data. Vietnam's digital transformation programme for education and the shift to competency-based assessment under the 2018 curriculum create similar demand for adaptive practice tools procured by provinces and schools.

COMPASS Inc., Bunkyo-ku, Tokyo; Representative Director Jun Sato. Qubena received the METI Minister's Prize at the Japan e-Learning Awards and a Good Design Award. 2025 adoptions include Handa, Izumi, Takasago and Fukuoka; Dazaifu (2026) and Asakuchi (2026) followed.