Speechtools LtdDAF Pro: Fluent Speech Customer Service
The #1 DAF App Used Worldwide!
DAF Pro is a professional speech therapy tool designed to help people who stammer or have neurological conditions like Parkinson’s Disease. It helps slow down speech, making it clearer and more fluent.
Why Choose DAF Pro?
* Proven Speech Therapy – Uses Delayed Auditory Feedback (DAF), a clinically recognized technique.
* Ultra-Low Latency – Real-time feedback, even in the background.
* Easy to Use – Designed for all users, from professionals to individuals.
* Trusted by Experts – Developed & tested by a certified Speech & Language Therapist.
How It Works
DAF Pro alters how you hear your own speech, helping to naturally slow down your speaking rate. Research shows that DAF benefits 1 in 3 people with a stammer or Parkinson’s.
Designed for Convenience
Works even when the screen is off
Supports wired & Bluetooth headsets (note: Bluetooth adds a 60ms delay)
No ads, no data collection – GDPR compliant
What Users Say
* "Life-changing for my speech!"
* "Simple and effective – highly recommend!"
Have questions or feedback? We’d love to hear from you! Contact us at [email protected]
DAF Pro: Fluent Speech App Comments & Reviews
DAF Pro: Fluent Speech Positive Reviews
Thank you so muchFrom the bottom of my heart, thank you. I work in a call center and I have a stutter. I put an earbud in and put it on 55ms. I don’t stutter at all on the phone now. Then I forgot to put my earbuds in and I didn’t stutter. Hoping it will improve my speech overall after the repetition. It also helps me slow down my speaking and makes me feel calm. This app is priceless. Best 3 bucks I ever spent in my life. I feel hope that I will be able to speak fluently now. This has changed my life. Thank you and god bless.Version: 2.11
I love this app so much!Lord and the developer of this app, you have healed me. For a long time, I've stuttered/stammered but today when I tried out this app after purchasing and downloading it, an incredibly amazing miracle just happened. I was finally able to speak much more fluently with a tiny stammer or no stammers at all. Thank you so much for developing this app for those who need this..Version: 2.3
This works.I been stuttering for over 50 years and I used everything from speecheasy devices to taking classes. This works just like the speecheasy without spending $4000. But pros and cons of both. Thanks so much for helping me with this. Anywar to get this to work with a hearing air.Version: 3.3.2
Life SaverThis app has been a life saver. I cannot recall the last time I have ever felt more confident going into meetings. Little to no stammering, only have to gather my thoughts before I speak. Thank you to whoever developed this app. I plug in one ear piece to listen during meetings..Version: 4.6.4
Excellent DAF appI have a speech disorder called cluttering, and this app has been a tremendous help. It is simple, yet very effective in helping me slow my rate of speech and improve articulation. And, the ability to record a sample and play it back for analyzing is a nice feature. Great app, highly recommended..Version: 2.3
Excellent appApp operation is straightforward and clean. The clarity of the audio and delay is also top notch. Highly recommend use of the app as an additional tool for the management of stuttering..Version: 2.11
Thank youuuuu so muchWow you cured me god bless ❤️🙏🏽💯.Version: 2.10
Cannot use pitch changeAny change in pitch causes a static sound..Version: 2.11
Scratchiness with any pitch changeWorks great with no change in pitch, but a scratchy noise is apparent with any change in pitch. tried other headphones, no difference..Version: 2.5
Great appGreat app.Version: 4.5.3
So far so goodI have been stuttering for all my life, now 38 years old. I have researched several of the expensive items such as speech easy. I was very eager to spend the thousands for that item but then through further research, I found that apps have been developed. Currently I have downloaded 5 different apps. My main concern is that other apps with delayed auditory feedback seemed to be too delayed. Some have 0ms while others have 4 minimum. In these cases, there seemed to be a longer time response to hear myself, so it didnt help much. This app, though it shows the minimum delay is 23 ms, it seems much quicker than the other apps who show a shorter delay time. I just started working with this, so in about 2 weeks, I will try to post again to give appropriate feedback. So far, I like this app the most as the delay time is very quick so I can hear myself as soon as I am speaking..Version: 1.2
DAF ProFinally a daf tool that all stutterers can use via the iOS platform! It's free. The voice the stutterer hears is their own voice, very natural, not robotic as previous devices have been. I tried it for first time today with a high school senior who stutters pretty severely. It worked perfectly! He was 100% fluent, first time, reading aloud. Incredible experience for him and me! I am an SLP.Version: 1.0
Amazing toolDAF Pro is elegant and amazing! After a little experimenting with the amount of delay, I have some wonderful results. The app also runs in the background, so you can keep it running while you use other apps like email and web. Thanks for this amazing tool!.Version: 1.2
Like the proverbial charm!This $10 app accomplishes what I could have spent hundreds of dollars on for dedicated hardware. The only reason I might not give it 5 stars is this: I know or can't work on a phone call, but sometimes when something else grabs the audio out , DAF doesn't grab it back afterwards. Oh well, 5 stars anyway..Version: 1.2
No useI have no use for it, but I use it as an amplifier. My mic built into my Sony earbuds with volume control is sensitive, so i use it As an amplifier for my bad hearing. Delay all the way down, volume up on system and app, and there ya go!.Version: 1.2
Awesome!!!This app has been extremely helpful when working with my stuttering clients. I'm still trying to figure out how to work it on my iPad but it works great on my iPhone!.Version: 1.1
Good appUsed this with students n it helps them read more fluently..Version: 1.2
Fantastic!This amazing device has given me the confidence to speak out when I have too shy to before. It makes presentations, and reading outloud..Version: 1.2
:3It did improve stuttering, and would be perfect if was accessible during phone call in iPhone.Version: 1.3
NiceI was impressed with how the microphone automatically shuts off when your not talking so you dont hear background noise. Better than most DAF apps.Version: 1.2
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