DAF/FAF Aid at App Store analyse

App power index: 624 (based on ranks around App Stores today)
Health & Fitness Medical
Developer: Florian Student
Price: 0 free
Current version: 4.3, last update: 7 years ago
First release : 18 Aug 2011
App size: 1.62 Mb
4.8 ( 6768 ratings )
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Estimation application downloads and cost

> 13.73k
Monthly downloads
~ $ 5.62k
Estimation App Cost


The DAF/FAF Aid implements the methods DAF (Delayed Auditory Feedback) and FAF (Frequency Altered Feedback) that have been shown to significantly reduce stuttering for most people who stutter. The app works by recording the speech through your headset, applying these methods and playing the modified audio back to you.

* DAF stands for "Delayed Auditory Feedback" and means that the recorded audio is played back with a small, configurable delay (40 .. 500 ms).

* FAF means "Frequency Altered Feedback". The pitch of the recorded sounds is shifted up or down by up to 12 halftones (one octave) and then played back through the headset.

Additional features:

* Background operation: this program will continue to run in the background. You may browse the web, write your emails, etc. while enjoying the DAF/FAF support.

* Bluetooth support: If youve got an iPhone, iPod Touch 4th generation (or newer), or iPad 2 (or newer) and a bluetooth headset, you can use that with this application. Please note that the bluetooth transmission causes an additional small delay.

* Configurable left-right balance: Ideal if you want to walk around with both earbuds of your headset plugged in, but prefer to hear the auditory feedback only in one ear.

* Configurable volume boost: makes low noises louder without overdriving loud noises (automatic compression).

* Optional auto-mute: Configure the sensitivity and set a delay between 1 and 60 seconds.

* Optionally enable the 7-band equalizer to have even more customization options.

This app is compatible with the iPhone (starting with the iPhone 3G), iPad and iPod touch (starting with the third generation). Please note that the equalizer and multi-DAF feature need some additional processing power and therefore are not supported on the iPhone 3G . You will need Apple earphones with mic or a bluetooth headset.

If you are happy with this program, please tell your friends about it, or write a positive review on the App Store. If there are any problems, please let me know. I will do what I can to get it working on your device. Customer satisfaction is very important to me.

This app was developed by Florian Student. You may reach me by clicking the support link and filling out the form.
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Available in countries
Country Price
Canada 17.99 CAD
China 88 CNY
France 13.99 EUR
Germany 13.99 EUR
Italy 13.99 EUR
Netherlands 13.99 EUR
Portugal 13.99 EUR
Spain 13.99 EUR
Poland 13.99 EUR
UK 12.99 GBP
India 999.99 INR
Japan 999.99 JPY
Poland 59.99 PLN
Russia 999 RUB
Turkey 47.99 TRY
USA 12.99 USD
Korea, Republic Of 14.29 USD
Ukraine 12.99 USD
Available for devices
iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,