Keynoa

Keynoa is an assistive technology platform designed for blind and visually impaired users, enabling them to read, write, and interact with digital text through touch-based interaction. Built around the Cherradi method, the system translates characters into coded vibrations delivered through wearable finger rings, allowing users to “see with their fingers.” The platform supports reading and writing text in any language, enhances Braille with vibration-based interaction, and opens access to education, music, communication, and everyday digital content — including for deaf-blind users.

Our team delivered the full Android application development, focusing on deep system-level functionality and accessibility-first design. We implemented a custom Android keyboard, integrated the mobile app with Keynoa Rings wearable devices, and built advanced accessibility features, including customized screen reading behavior and interaction flows optimized for non-visual use. The work required close alignment between hardware input, vibration-based feedback, and Android OS accessibility services. This project demonstrates our ability to build mission-critical accessibility solutions, combining custom input methods, device integration, and inclusive UX to support real-world daily use for people with visual impairments.