---
title: "DAF Pro: 吃音とパーキンソン病 - Reviews, Revenue and Downloads in Japan | Apple App Store"
description: "DAF Proは、吃音やパーキンソン病のある方が、ゆっくり流暢に話せるようサポートします。ヘッドホンをつけて話すと、自分の声がほんの一瞬遅れて聞こえます。  仕組み 遅延聴覚フィードバック（DAF）は、臨床的に認められた言語聴覚療法の手法です。自分の声が少し遅れて聞こえると、話す速さが自然にゆっくりになり、発話がなめらかで明瞭になることがあります。研究では、DAFは吃音のある方の約3人に1人に役立"
---

# DAF Pro: 吃音とパーキンソン病 — Japan
> 遅延聴覚フィードバックで話す速さを整える

![DAF Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/78/f5/ab/78f5abfd-5240-75d0-9b7f-687b8b7f2092/AppIcon-0-0-1x_U007epad-0-1-85-220.png/400x400bb.png)

**Developer:** [Speechtools](https://apptail.io/developer/speechtools-Wvv) (United Kingdom)
**Category:** Medical
**Rating:** 3.6/5 (10 ratings)
**Price:** ¥700.00
**Bundle ID:** com.aszart.dafprofessional
**Store:** Apple App Store
**Country:** Japan
**Version:** 4.10.0 (released 2026-09-17)
**Original Release:** 2012-01-04

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id491299921)
**AppTail Page:** [https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/japan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/japan)

## DAF Pro Description
DAF Proは、吃音やパーキンソン病のある方が、ゆっくり流暢に話せるようサポートします。ヘッドホンをつけて話すと、自分の声がほんの一瞬遅れて聞こえます。

仕組み
遅延聴覚フィードバック（DAF）は、臨床的に認められた言語聴覚療法の手法です。自分の声が少し遅れて聞こえると、話す速さが自然にゆっくりになり、発話がなめらかで明瞭になることがあります。研究では、DAFは吃音のある方の約3人に1人に役立つとされ、パーキンソン病のある方が話す速さをコントロールするためにも使われています。

対象
* 吃音のある方
* パーキンソン病のある方
* 構音障害のある方
* クラタリング（早口言語症）のある方
* 言語聴覚士（臨床セッションや自宅練習に）

機能
* 遅延時間とピッチシフトを調整可能
* 処理遅延が小さく、短い遅延設定もそのまま保たれる
* バックグラウンドや画面オフでも動作
* 自分の発話を録音・再生
* 有線・Bluetoothヘッドセットに対応。Bluetoothはヘッドセットによって遅延が加わるため、短い遅延には有線ヘッドホンが適しています。

はじめ方
ヘッドホンをつけ、遅延を約50〜100msに設定し、「開始」を押して話します。話し方がゆっくり安定したと感じるまで調整してください。

英国の言語聴覚士が開発。買い切り：サブスクなし、広告なし、アカウント登録不要。

ご質問・ご意見のお問い合わせ：support@speechtools.co

## DAF Pro Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9e/59/88/9e598863-b356-4f94-3b8e-0930765dc5fe/iphone_00_hero.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9c/2e/3e/9c2e3efc-d45b-45e2-3168-358277c3a11e/iphone_01_kudos.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9f/43/c6/9f43c6f5-4633-8944-bdcb-9458e6eb666b/iphone_02_conditions.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/72/3d/51/723d51f4-6066-d3a4-8fc1-7288ac31d448/iphone_03_how.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8a/32/14/8a3214b2-54ee-e623-5e8c-eddfb8ca36ae/iphone_04_record.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ca/3f/23/ca3f235d-e04e-b787-922d-eac6607e5544/iphone_05_ways.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3c/87/05/3c870586-7cd5-a792-9e60-732a4a246099/iphone_06_trust.png/1320x2868.png)

## DAF Pro Rating Breakdown in Japan
- 5 stars: 4 (40%)
- 4 stars: 3 (30%)
- 3 stars: 0 (0%)
- 2 stars: 1 (10%)
- 1 stars: 2 (20%)



## DAF Pro Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Finland | Medical | #2 |
| Top Paid | India | Medical | #3 |
| Top Paid | Norway | Medical | #5 |
| Top Paid | Ukraine | Medical | #6 |
| Top Paid | Kazakhstan | Medical | #16 |
| Top Paid | Italy | Medical | #16 |
| Top Paid | Japan | Medical | #21 |
| Top Paid | Nigeria | Medical | #24 |
| Top Paid | Russia | Medical | #25 |
| Top Paid | Türkiye | Medical | #30 |
| Top Paid | China | Medical | #32 |
| Top Paid | Azerbaijan | Medical | #34 |
| Top Paid | United States | Medical | #35 |
| Top Paid | South Korea | Medical | #35 |
| Top Paid | Poland | Medical | #37 |
| Top Paid | Canada | Medical | #37 |
| Top Paid | Pakistan | Medical | #37 |
| Top Paid | Vietnam | Medical | #37 |
| Top Paid | Saudi Arabia | Medical | #40 |
| Top Paid | Kuwait | Medical | #42 |
| Top Paid | Belarus | Medical | #44 |
| Top Paid | Egypt | Medical | #45 |
| Top Paid | Finland | Overall | #46 |
| Top Paid | United Kingdom | Medical | #49 |
| Top Paid | Sweden | Medical | #49 |
| Top Paid | United Arab Emirates | Medical | #52 |
| Top Paid | Denmark | Medical | #55 |
| Top Paid | Portugal | Medical | #57 |
| Top Paid | Israel | Medical | #58 |
| Top Paid | Lebanon | Medical | #60 |
| Top Paid | Taiwan | Medical | #62 |
| Top Paid | Dominican Republic | Medical | #69 |
| Top Paid | France | Medical | #73 |
| Top Paid | Romania | Medical | #74 |
| Top Paid | Czechia | Medical | #78 |
| Top Grossing | India | Medical | #78 |
| Top Paid | Argentina | Medical | #82 |
| Top Paid | Belgium | Medical | #82 |
| Top Paid | Peru | Medical | #83 |
| Top Paid | Singapore | Medical | #88 |
| Top Paid | Chile | Medical | #97 |
| Top Paid | Spain | Medical | #100 |
| Top Paid | Hungary | Medical | #102 |
| Top Paid | Norway | Overall | #104 |
| Top Paid | South Africa | Medical | #104 |
| Top Paid | Hong Kong SAR China | Medical | #105 |
| Top Paid | Ireland | Medical | #108 |
| Top Paid | India | Overall | #115 |
| Top Paid | Netherlands | Medical | #117 |
| Top Paid | Brazil | Medical | #118 |
| Top Paid | Indonesia | Medical | #121 |
| Top Paid | Greece | Medical | #137 |
| Top Paid | Ukraine | Overall | #138 |
| Top Paid | Ecuador | Medical | #142 |
| Top Paid | Malaysia | Medical | #145 |
| Top Paid | Thailand | Medical | #155 |
| Top Paid | Australia | Medical | #156 |
| Top Paid | Austria | Medical | #163 |
| Top Paid | Switzerland | Medical | #169 |
| Top Paid | New Zealand | Medical | #174 |
| Top Paid | Colombia | Medical | #176 |
| Top Paid | Germany | Medical | #186 |
| Top Paid | Philippines | Medical | #190 |
| Top Paid | Mexico | Medical | #195 |


## Apps Similar to DAF Pro
- [Stamurai: Stuttering Treatment](https://apptail.io/app/stamurai-stuttering-treatment-snU/japan)
- [BeneTalk: Stuttering Coach](https://apptail.io/app/benetalk-stuttering-coach-KFZc/japan)
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- [qb DAF - Stuttering Speech Aid](https://apptail.io/app/qb-daf-stuttering-speech-aid-iNBi/japan)
- [Mumble Melody](https://apptail.io/app/mumble-melody-lQHj/japan)
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## DAF Pro Available In
- [United States](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/united-states)
- [United Kingdom](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/united-kingdom)
- [Russia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/russia)
- [China](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/china)
- [Japan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/japan)
- [Sweden](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/sweden)
- [Canada](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/canada)
- [Germany](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/germany)
- [Italy](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/italy)
- [India](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/india)
- [Türkiye](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/turkey)
- [Saudi Arabia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/saudi-arabia)
- [France](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/france)
- [Brazil](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/brazil)
- [Taiwan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/taiwan)
- [Norway](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/norway)
- [Mexico](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/mexico)
- [Australia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/australia)
- [Chile](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/chile)
- [Spain](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/spain)
- [United Arab Emirates](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/united-arab-emirates)
- [Peru](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/peru)
- [Ecuador](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/ecuador)
- [Netherlands](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/netherlands)
- [Denmark](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/denmark)
- [Argentina](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/argentina)
- [Austria](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/austria)
- [Belgium](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/belgium)
- [Switzerland](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/switzerland)
- [Colombia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/colombia)
- [Egypt](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/egypt)
- [Finland](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/finland)
- [Greece](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/greece)
- [Indonesia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/indonesia)
- [South Korea](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/south-korea)
- [Kazakhstan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/kazakhstan)
- [New Zealand](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/new-zealand)
- [Philippines](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/philippines)
- [Poland](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/poland)
- [Romania](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/romania)
- [Singapore](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/singapore)
- [Ukraine](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/ukraine)
- [South Africa](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/south-africa)
- [Lithuania](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/lithuania)
- [Luxembourg](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/luxembourg)
- [Latvia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/latvia)
- [Madagascar](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/madagascar)
- [Hong Kong SAR China](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/hong-kong)
- [Malaysia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/malaysia)
- [Nigeria](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/nigeria)
- [Estonia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/estonia)
- [Algeria](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/algeria)
- [Nepal](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/nepal)
- [Bulgaria](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/bulgaria)
- [Dominican Republic](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/dominican-republic)
- [Azerbaijan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/azerbaijan)
- [Pakistan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/pakistan)
- [Vietnam](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/vietnam)
- [Portugal](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/portugal)
- [Armenia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/armenia)
- [Czechia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/czechia)
- [Cyprus](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/cyprus)
- [Belarus](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/belarus)
- [Uzbekistan](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/uzbekistan)
- [Israel](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/israel)
- [Ireland](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/ireland)
- [Iceland](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/iceland)
- [Hungary](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/hungary)
- [Croatia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/croatia)
- [Slovenia](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/slovenia)
- [Kuwait](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/kuwait)
- [Thailand](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/thailand)
- [Lebanon](https://apptail.io/app/daf-pro-stutter-parkinsons-RFZc/lebanon)

---

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