Real beads. Real touch. Digital intelligence. Undugu is a sensor-enabled Japanese abacus that sees every bead your child moves — and an AI teacher that guides them, step by step.
Early-bird pricing available for a limited quantity · Join the waitlist for demos and updates
The abacus builds number sense the way no screen can: children see and touch quantities, not just symbols. It's the method behind the math fluency of millions of students across Japan, China, and Asia.
But a traditional abacus is silent. It can't tell your child whether a move was right, track progress, or make practice fun. Undugu changes that: infrared sensors on every rod detect each bead movement in real time, and the companion app turns practice into guided lessons, games, and measurable progress.
Undugu adapts to how you learn and teach. Choose your path.
Your child practices independently with an AI teacher; you see exactly what they learned. The app can even train you to teach.
For families →Classroom tools, automatic session tracking, homework with detailed reports, and a certification course for your trainers.
For educators →Run an abacus program without abacus specialists — the platform teaches, tracks, and reports for every student.
For schools →A tactile-first math platform with voice guidance and audio feedback — designed for blind-first interaction from day one.
Accessibility →Build games, lessons, and research tools on real abacus hardware with the Undugu SDK.
For developers →Flick the beads of our online abacus right in your browser and see how abacus arithmetic works.
Play with it →Undugu is built on a structured curriculum: a 35-day certified trainer course covering all four operations and mental abacus, and a level ladder benchmarked against real international math competitions and national syllabi.
Students don't just "use an app" — they climb a defined path from first bead to competition-ready mental math, with every step measured.
Levels named for the history of mathematics — each benchmarked to real external standards:
AhmesPythagorasArchimedesAl-KhwarizmiFibonacciNewtonGauss…and beyondBenchmarked to Math Kangaroo, MOEMS, SASMO, and the Singapore Primary syllabus.
Undugu exhibited at CES 2026 in Eureka Park, Las Vegas, and presented at the AIAMA 2026 Abacus Olympiad in Taipei — live demos for families, press, abacus champions, and master teachers.
Pre-order your Undugu abacus, or join the waitlist for demos, updates, and early-bird pricing.