# D.A.F Fluency studio — DAF + FAF · Stuttering

> DAF + FAF · Stuttering (iPhone/iPad app by Philippe Mouchnino.)

- Source: https://appshunter.io/ios/app/daf-fluency-studio/id6778183330 (this page in markdown: same URL + `.md`)
- Developer: [Philippe Mouchnino](https://appshunter.io/developer/6774114149)
- Category: Medical, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 55 MB
- Languages: American English
- Released: 2026-07-16
- Data updated: 2026-08-29
- User reviews in markdown: https://appshunter.io/ios/app/daf-fluency-studio/id6778183330/reviews.md

## What is D.A.F Fluency studio?

Fluency brings together the two most-researched auditory feedback methods against stuttering, cluttering and rushed speech: DAF (delayed feedback) and FAF (pitch shift).

SCIENCE
- Up to -85% blocks in adults who stutter in reading (Stuart et al., 1996).
- -74% disfluencies with FAF -1 semitone (Antipova, 2008).
- AI Choral Speech: -70% disfluencies (JSLHR, 2024).

FULL AUDIO STUDIO
- Real-time DAF knob (0 to 500 ms)
- FAF knob (-3 to +3 semitones)
- Visual metronome with adjustable BPM
- 8 therapy presets (reading, conversation, spontaneous speech...)

BUILT-IN AI (Pro)
- Post-session Coach (GPT-5.2 + Whisper)
- Custom practice texts
- Choral Speech reading with AI voice
- Oral story completion
- Karaoke with original lyrics
- Fluence Run mini-game

6 LANGUAGES
French, English, Spanish, German, Italian, Portuguese.

FREE MODE always available
DAF Player + Metronome + History + Scientific documentation.

Pro: monthly or yearly subscription, or one-time lifetime purchase. 

Fluency is a training tool. It does not replace speech-language therapy.

Terms of Use (EULA): https://langage.online/cgu
Privacy Policy: https://langage.online/confidentialite

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Fluency Pro Mensuel | $3.99 | per month |
| Fluency Pro Annuel | $17.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Fluency Pro à Vie | $44.99 | one-time |



## Version history (last 4 releases)

### 1.0.10 — 2026-08-26

- Stimulation Lab: white, pink and brown noise generators with low-pass, high-pass, band-pass and narrow-band filters. Built-in hardware limiter and emergency stop button.
- Combined mode: overlay DAF and FAF on top of the generated noise, in a single audio stream.
- Clinical stuttering analysis: automatic detection of repetitions, prolongations, blocks and interjections with word-level transcription.
- Clinical metrics: %SS, articulatory rate, phonation time.
- Interactive timeline: edit, delete or recategorize each detected event.
- Progress tracking: charts over 7 days, 30 days and 1 year.
- Clinical report export in CSV, JSON or PDF.
- Audio fixes and self-repair when the system interrupts the session.

### 1.0.9 — 2026-08-01

What's new in v1.0.4

- Full Hebrew and Arabic support with RTL (right-to-left) layout
- Automatic device language detection at first launch
- New "How to use Fluency" welcome screen with direct tutorial access and language switcher
- Pro page redesign: new prices (€5.99/mo, €59/yr, €129 lifetime), all future updates included
- DAF profiles and AI exercises translated in all 8 languages
- Bug fixes and performance improvements

Thank you for your feedback and support.

### 1.0.7 — 2026-07-26

• New: timed Conversation Mode with speaking prompts
• New: native ultra-low-latency DAF/FAF engine (under 25 ms)
• New: automatic headphone detection - warning banner when Bluetooth (degraded DAF effect) or speaker is active
• Improved: onboarding now covers hardware recommendations

### 1.0.6 — 2026-07-15

No release notes.

## More apps by Philippe Mouchnino

- [FlashRead Kids](https://appshunter.io/ios/app/flashread-kids/id6777035144)

All apps by Philippe Mouchnino: https://appshunter.io/developer/6774114149

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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 2026-08-29.*