The problem we kept noticing

Braille is everywhere in Japan — train handrails, elevator buttons, pill packaging, ATM panels. Most people walk past it without a second thought. We kept wondering: what would it take to make that text readable to anyone with a camera?

That's how TenjiScan started. Not as an accessibility platform, but as a focused answer to one specific question.

How it works

The core is Apple's Vision framework combined with a custom two-signal pipeline that interprets braille dot patterns. Point your camera at a surface, the app parses the dot grid and outputs Japanese or English text.

The processing happens entirely on-device. Since v4.0.0, no image is ever sent to a server.…