# qb DAF - Stuttering Speech Aid — Delayed Auditory Feedback

> Delayed Auditory Feedback app for speech fluency and stuttering reduction. (iPhone/iPad app by Giuseppe Di Cienzo.)

- Source: https://appshunter.io/ios/app/qb-daf-stuttering-speech-aid/id1565802634 (this page in markdown: same URL + `.md`)
- Developer: [Giuseppe Di Cienzo](https://appshunter.io/developer/1521157326)
- Category: Medical, Health & Fitness
- Price: $1.99
- Rating: 4.80/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.0 · 22 MB
- Languages: American English, French (France), German (Germany), Hebrew, Indonesian, Italian, Japanese, Korean, Russian, Chinese (Simplified, China) and 2 more
- Released: 2021-05-12
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/qb-daf-stuttering-speech-aid/id1565802634/reviews.md

## What is qb DAF?

Hear your voice differently. Speak more fluently.

qb DAF brings Delayed Auditory Feedback — a technique used by speech-language pathologists for decades — to your pocket. Put on your headphones, press Start, and hear your own voice played back with a slight delay. For many people who stutter, this simple change is enough to noticeably improve fluency and slow down speech naturally.

HOW IT WORKS
Delayed Auditory Feedback (DAF) alters the way you hear yourself while speaking. By delaying your voice by a fraction of a second, it encourages slower, more deliberate speech and can reduce stuttering for many users. DAF is also used to practice pacing in everyday conversation, public speaking, and reading aloud.

FEATURES
• Real-time voice feedback with no recording — your voice goes straight from the microphone to your headphones
• Adjustable delay from 25 to 200 ms, in simple 25 ms steps
• Change the delay live, while you speak, and feel the difference instantly
• Sound waves on screen follow your real voice
• Works in the background and with the screen locked — keep practicing while reading or walking
• Safe by design: starts only with headphones connected, and stops automatically if they disconnect or a call comes in
• Clear warning when Bluetooth headphones add extra latency (wired headphones give the most accurate timing)
• No account, no ads, no tracking. Completely free.

PRIVACY FIRST
Your voice is never recorded, saved, or sent anywhere. All audio is processed in real time on your device and disappears the moment you hear it. qb DAF collects no data at all.

GETTING STARTED
1. Connect your headphones (wired recommended)
2. Choose your delay — most people start around 50–100 ms
3. Press Start and speak

qb DAF is a self-practice tool and is not a medical device. It does not replace professional advice from a speech-language pathologist.

## Key features

- Delayed Auditory Feedback (DAF)
- Real-time voice feedback
- Improves speech fluency
- Reduces stuttering
- Supports wired and Bluetooth headphones
- Adjustable delay settings

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/qb-daf-stuttering-speech-aid/id1565802634/reviews.md

### 3/5 — More Delay Options

*2026-01-09*

Somewhat helpful for delayed speech practice. Would be better with at least double the maximum delay of 100ms.

## Frequently asked questions about qb DAF

### What is qb's primary function?

qb provides Delayed Auditory Feedback (DAF), allowing users to hear their own voice with a slight delay. This feedback mechanism is designed to help users improve their speech fluency and reduce stuttering in real-time.

### How does qb help reduce stuttering?

By providing real-time auditory feedback with a delay, qb helps users self-correct their speech patterns. This can lead to more controlled breathing and timing, which users report can reduce stuttering by up to 80% instantly.

### What equipment is needed to use qb?

To effectively use qb, you will need headphones with a microphone, either wired or Bluetooth. The app leverages this audio feedback loop to provide its therapeutic benefits.

### What is the recommended delay setting for qb?

For optimal results, it is recommended to set the delay between 50 ms and 75 ms. If using Bluetooth headphones, which inherently have a delay, setting the delay to 0 ms will still provide the desired effect due to the existing latency.

### Is qb suitable for professional use?

Yes, the app is described as 'professional DAF' and is suitable for those who want to practice speech exercises, reduce stuttering, or prepare for public speaking engagements.

### What devices does qb support?

qb is available for iPhone, iPad, and iPod devices, indicating broad compatibility within the Apple ecosystem.

### How often is qb updated?

The latest version of qb is 1.2, which was last updated on January 18, 2023. This suggests a relatively consistent update schedule from the developer.

### What is the age rating for qb?

qb has an age rating of 17+, which is common for medical or specialized utility applications that may require a certain level of cognitive understanding or maturity.

## Version history (last 3 releases)

### 1.3 — 2026-06-12

A big update for qb DAF!

• The waves now follow your real voice as you speak
• Delay range extended up to 200 ms (in 25 ms steps)
• Change the delay live, without stopping playback
• New warning when using Bluetooth headphones, which add extra latency
• Safer by design: the app now starts only with headphones connected, and stops automatically if they disconnect or a call comes in
• Completely rebuilt audio engine for rock-solid start/stop reliability
• Refreshed for the latest iPhones and iOS versions

### 1.2 — 2023-01-18

Some bugs fixed

### 1.0 — 2021-05-13

No release notes.

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## More apps by Giuseppe Di Cienzo

- [CiaoCiao - Italian Phrasebook](https://appshunter.io/ios/app/ciaociao-italian-phrasebook/id1521166671)
- [Galaxy of Words - Word Game](https://appshunter.io/ios/app/galaxy-of-words-word-game/id1554297565)
- [Convo \| Live Transcribe & Talk](https://appshunter.io/ios/app/convo-live-transcribe-and-talk/id1568864400)
- [HSK 1 \| Learn Chinese Fluencee](https://appshunter.io/ios/app/hsk-1-learn-chinese-fluencee/id1579926925)
- [Soundscape: Meditation Nature](https://appshunter.io/ios/app/soundscape-meditation-nature/id1591936429)

All apps by Giuseppe Di Cienzo: https://appshunter.io/developer/1521157326

## Related topics

[delayed auditory feedback](https://appshunter.io/ios/topics/delayed-auditory-feedback) · [daf delayed auditory feedback](https://appshunter.io/ios/topics/daf-delayed-auditory-feedback)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*