DAF Pro: Stutter & Parkinson's

Name: DAF Pro: Stutter & Parkinson's
Price: 5.99 CAD
Rating: 2.2 (6 reviews)
Author: Speechtools Ltd

Delayed auditory feedback

$5.99 · Designed for iPad. Not verified for macOS.

6 Ratings
Age Rating

4+
Years
Chart

#52
Medical
Developer

Speechtools Ltd
Language

EN
+ 25 More
Size

12.2
MB

Hear your own voice on a short delay — a clinically recognized way to slow and steady speech. Built by a speech and language therapist. No ads, no subscription. DAF Pro helps people who stutter and people with Parkinson's slow down and speak more fluently. Put on headphones, speak, and hear your own voice a fraction of a second later. How It Works Delayed auditory feedback (DAF) is a clinically recognized speech therapy technique. Hearing your voice on a short delay naturally slows your speaking rate, which can make speech smoother and clearer. Research suggests DAF helps around 1 in 3 people who stutter, and it is also used to help people with Parkinson's control their speaking rate. Who It's For * People who stutter or stammer * People with Parkinson's disease * People with dysarthria * People who clutter * Speech-language pathologists, for therapy sessions and home practice Features * Adjustable delay and pitch shift * Very low latency, so short delays stay short * Keeps working in the background and with the screen off * Record and play back your speech * Works with wired and Bluetooth headsets. Bluetooth adds extra delay that varies by headset, so wired headphones work best for short delays. Getting Started Put on headphones, set the delay to around 50–100 ms, press Start and speak. Then adjust until your speech feels slower and steadier. Built by a UK speech and language therapist. One-time purchase: no subscription, no ads, no account needed. Questions or feedback? Contact us at support@speechtools.co

Ratings & Reviews

2.2

out of 5

6 Ratings

Noise
2024-12-18
atorrot
Ripple noise while I’m speaking. Unusable, I’m going to get a refund.
Noise
2024-12-18
atorrot

Ripple noise while I’m speaking. Unusable, I’m going to get a refund.
Can’t use it during phone calls
2018-08-05
Explicit06
The reason I bought a paid app was so that I could use it during phone calls. There are many free DAF apps available for the exact same thing it does. It also shuts off as the phone automatically locks when idle- doesn’t have the ability to play in background. I would rather use the free apps had I known this to be honest.

Developer Response
Hi, sorry to hear you're disappointed but it's just not technically possible for DAF Pro to work during phone calls as we make clear in our description. This is by design by Apple and no other DAF apps support this, paid or not.
Can’t use it during phone calls
2018-08-05
Explicit06

The reason I bought a paid app was so that I could use it during phone calls. There are many free DAF apps available for the exact same thing it does. It also shuts off as the phone automatically locks when idle- doesn’t have the ability to play in background. I would rather use the free apps had I known this to be honest.
Developer Response 2018-08-28
Hi, sorry to hear you're disappointed but it's just not technically possible for DAF Pro to work during phone calls as we make clear in our description. This is by design by Apple and no other DAF apps support this, paid or not.
:3
2014-11-01
成仔龟苓膏
It did improve stuttering, and would be perfect if was accessible during phone call in iPhone

Developer Response
It would but unfortunately we can't offer that due to security restrictions on the iPhone
:3
2014-11-01
成仔龟苓膏

It did improve stuttering, and would be perfect if was accessible during phone call in iPhone
Developer Response 2025-10-28
It would but unfortunately we can't offer that due to security restrictions on the iPhone
Nice
2013-09-15
Appemd
I was impressed with how the microphone automatically shuts off when your not talking so you dont hear background noise. Better than most DAF apps
Nice
2013-09-15
Appemd

I was impressed with how the microphone automatically shuts off when your not talking so you dont hear background noise. Better than most DAF apps

Updated for iOS 27

Version 4.10.0 Sep 17

Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Speechtools Ltd
Size: 12.2 MB
Category: Medical
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.

iPad
Requires iPadOS 17.0 or later.

Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 25 more

English, Arabic, Danish, Dutch, Filipino, French, German, Greek, Hebrew, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
Age Rating: 4+

4+

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