Fonate DAF

Fonate DAF

Control Stuttering

34 ratings
14 reviews
Free

Details

  • Released
  • Updated
  • May 9, 2015
  • May 11, 2026
Fonate DAF screenshot #1 for iPad
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About

This application utilizes Delayed Auditory Feedback to assist individuals who stutter in achieving more fluent speech. By listening to their voice with a slight delay and pitch alteration through a headset, users can experience a 'choral effect' known to reduce stuttering.

Delayed Auditory Feedback
Choral effect for fluency
Wired headset support
Bluetooth headset support
Pitch alteration
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What's New in Fonate DAF

5.0

May 11, 2026

Background audio support.

User reviews

Interesting “delayed auditory feedback” App.

This really does work in affecting one’s speech.
I was curious if this DAF concept could really affect someone’s speaking ability and tried using this App to myself. I do not have any stuttering disorder but I did find myself speaking really slow while this DAF was applied to me. I find myself speaking about 100% slower. My brain just passively forcing me to speak really slowly as I read texts from a book.
I also didn’t find myself not able to talk properly, I was able to talk and read texts perfectly fine but really slow. In some cases, it does make you not talk properly, confusing the brain in hearing delayed syllables.
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Difficult to use, but eventually got it to work

First, this app has very little information on how to use it or troubleshoot it. It’s very frustrating. My speech therapist recommended it to me, and even she had trouble getting it to work during my appointment.

Second, I figured out the order I needed to set it up in for it to work properly.
1. Open app
2. Connect bluetooth earbuds
3. Switch silent mode off

I could not get the app to work if earbuds were connected before opening the app. And once the app is set up and you can hear the feedback, I was able to switch silent mode back on and still have it work.

After 3 visits, we were eventually able to get it working. But the audio was still muffled and low quality. That could possibly be the noise cancelling feature in my earbuds. This is a common issue with cheap ones. I think the quality would be better if I invested in a high quality pair or use a wired pair. I would need an adapter to do that though.

Overall, this app is a pain, but I experienced a little benefit
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No clue how to use this

The Help section doesn’t give much info on how to use this and how to troubleshoot. It says it supports wireless earbuds, but I can’t hear anything. My speech therapist recommended the app to me, but I didn’t have my earbuds on me ay the time, so I tried at home. I also checked the Fonate website for troubleshooting and it had zero information.
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Doesn’t work

Boy am I glad I didn’t actually pay for this app. It refuses to acknowledge my mic. I’m on a new iPhone and using AirPods. I know the airpods and mic work because I just used them on this iPhone on Duolingo and had no problems. And I’m also using text to speech to type this out.

Great for accent reduction

I use this app for accent reduction in English. I read the text and get instant feedback on my voice and pronunciation. It is more effective then recording myself and then listen. Thanks for the great app!

Developer apps

FAQ

What is Fonate DAF used for?

Fonate DAF is designed to help people who stutter achieve slower, more fluent speech. It uses Delayed Auditory Feedback to create a 'choral effect' that has been shown to reduce stuttering.

Does Fonate DAF require any special equipment?

Yes, Fonate DAF requires a wired or Bluetooth headset. This is essential for the user to hear their voice with the delayed feedback.

How does Fonate DAF work?

The app plays your voice back to you with a slight delay and a change in pitch. This creates a 'choral effect' which can help to slow down speech and improve fluency for those who stutter.

What devices is Fonate DAF compatible with?

Fonate DAF is available for iPhone, iPad, and iPod. It is designed for Apple mobile devices.

What is the age rating for Fonate DAF?

Fonate DAF has an age rating of 4+. This indicates it is suitable for children aged 4 and above.

How often is Fonate DAF updated?

The latest version of Fonate DAF is 4.1, which was last updated on March 26, 2026. This suggests a relatively recent update.

What is the user rating for Fonate DAF?

Fonate DAF has a user rating of 4.2 stars based on 33 ratings. This indicates generally positive user reception.

Does Fonate DAF have ads?

No, Fonate DAF does not contain advertisements. The app is free and does not display any ads to users.