Fonate DAF is an iPhone application developed by Breathing Zone Limited in the category of Education & Reference, specifically targeting the field of Medicine. This program aims to assist individuals who stutter in achieving slower and more fluent speech through the use of Delayed Auditory Feedback (DAF).

By utilizing a wired or Bluetooth headset, Fonate DAF allows users to hear their own voice with a slight delay and change in pitch as they speak. This creates a "choral effect" which has been proven to be effective in reducing stuttering in many individuals. The program requires the use of a wired or Bluetooth headset to function properly.

With its focus on providing a practical solution to stuttering, Fonate DAF offers a user-friendly interface and an accessible approach to improving speech fluency. It is a valuable tool for those looking to enhance their communication abilities and overcome the challenges associated with stuttering.