If a sound could chime when a correct answer was recorded, the app would be more interactive for blind students. Part of what students love is seeing that their answer has been recorded in live view. Adding a simple chime would involve sight impaired participants. If you only had a chime for correct answers, rather than all answers, students could hear the feedback. One chime? We need to review the material. Lots of chimes? We got this one. - Thank you for creating and supporting this wonderful app!