The abacus has always been a naturally tactile calculator. Undugu turns it into a complete learning platform for blind and visually impaired students: real beads under the fingers, a voice that guides every step, and progress adults can trust.
Blind and low-vision students face structural barriers to arithmetic fluency: most tools give no accessible feedback, no adaptive progression, and no way to practice independently.
Existing approaches rarely offer continuous, accessible feedback during practice.
Materials don't adjust to each student's pace and profile.
Practice usually requires a sighted helper — limiting autonomy and confidence.
Educators lack structured data on what's actually working.
Undugu's accessibility mode is engineered for blind-first interaction — the same sensor hardware, with an interface built around touch and sound:
We are developing structured pilot programs with institutions serving blind and visually impaired students, beginning in California — with baseline and final fluency assessments, monthly monitoring, and formal impact reporting.
The goal: a repeatable, scalable model for accessible math education — measuring arithmetic speed, accuracy, independent problem-solving, and student confidence.
If you work with blind or low-vision learners — as a school, foundation, or teacher of the visually impaired — we'd love to talk.
Start the ConversationSchools, institutions, and foundations: partner with us on a pilot.