# qb DAF vs D.A.F Fluency studio

The clearest difference is price: D.A.F Fluency studio at Free against qb DAF's $1.99. D.A.F Fluency studio also leads on update cadence (every 11 days vs every 31 months). qb DAF's advantage is rating (4.8 vs 3.0) and in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

D.A.F Fluency studio is free to download; qb DAF costs $1.99 up front. D.A.F Fluency studio sells 3 in-app purchases, starting at $3.99 per month. qb DAF asks for nothing beyond the download.

qb DAF holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: qb DAF has 5 ratings behind it against 1, so its average is the more settled of the two.

qb DAF ships an update every 31 months, D.A.F Fluency studio every 11 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | qb DAF | D.A.F Fluency studio |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/qb-daf-stuttering-speech-aid/id1565802634/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/daf-fluency-studio/id6778183330/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 11 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 22 MB | 55 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Giuseppe Di Cienzo](https://appshunter.io/developer/1521157326) | [Philippe Mouchnino](https://appshunter.io/developer/6774114149) |

## What reviewers say

### qb DAF

[App page](https://appshunter.io/ios/app/qb-daf-stuttering-speech-aid/id1565802634)

This app provides delayed auditory feedback to help users improve their speech fluency in real-time. By hearing their voice with a slight delay, users can adjust their breathing and timing to overcome speaking obstacles, potentially reducing stuttering.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### D.A.F Fluency studio

[App page](https://appshunter.io/ios/app/daf-fluency-studio/id6778183330)

This app utilizes Delayed Auditory Feedback (DAF) and Pitch-Shifted Auditory Feedback (FAF) to help individuals reduce stuttering and improve speech fluency. It offers a full audio studio with customizable feedback, AI-powered coaching, and practice tools in multiple languages.

**Highlights:** Delayed Auditory Feedback (DAF), Pitch-Shifted Auditory Feedback (FAF), AI Choral Speech, Visual Metronome, Therapy Presets, AI Post-session Coach, Multi-language Support

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fluency Pro Mensuel | $3.99 | per month |
| Fluency Pro Annuel | $17.99 | per year |
| Fluency Pro à Vie | $44.99 | one-time |


## Frequently asked questions

### Is qb DAF free?

qb DAF costs $1.99, with no in-app purchases.

### Is D.A.F Fluency studio free?

D.A.F Fluency studio is free to download, with in-app purchases available.

### Which has better reviews, qb DAF or D.A.F Fluency studio?

qb DAF is rated higher. qb DAF averages 4.8 out of 5 from 5 ratings, while D.A.F Fluency studio averages 3.0 from 1 ratings.

### Do qb DAF or D.A.F Fluency studio have ads?

Neither qb DAF nor D.A.F Fluency studio shows ads.

### Which is updated more often, qb DAF or D.A.F Fluency studio?

qb DAF ships an update every 31 months, and D.A.F Fluency studio every 11 days. Most recently, qb DAF was updated on November 1, 2026 and D.A.F Fluency studio on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*