Welcome, I'm David Ward the Lead Developer on the Braille Sonar App. The Braille Sonar App is a At Your Fingertips creation. The App and hopefully future Apps are specifically designed with accessibility in mind. Many of the accessibility features enabled in the App are made possible via HTML5's ARIA feature set. If you have any questions or concerns feel free to contact us. If you have any concerns or support related questions feel free to contact me by any of the social networking links on this page. Or use the email Author button inside the Braille Sonar App.