Published by Speechtools Ltd on Dec 11, 2024

Report an issue with DAF Professional.
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Why should I report an Issue with DAF Professional?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Speechtools Ltd to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About DAF Professional

1. Whether you're looking to improve your speech clarity or manage speech impairments, DAF Pro is the ultimate tool for individuals with stuttering, stammering, Parkinson’s disease, dysarthria, and other speech and language disorders.

2. DAF Pro is a professional speech therapy aid for fluency that helps individuals with stuttering, stammering, and Parkinson's to slow their speech rate and improve articulation, making speech clearer and more understandable.

3. Originally developed for those who stutter or stammer, DAF Pro has been shown to benefit people with a variety of speech conditions, including those suffering from Parkinson’s, dysarthria, and other speech-related impairments.

4. Delayed Auditory Feedback (DAF) is a well-established therapeutic tool that allows users to hear their speech with a slight delay, helping them control their pace and reduce impairments in speech flow.

5. Ideal for individuals with stammering, stuttering, Parkinson’s, and other speech disorders.

6. Parkinson’s Support: Aids people with Parkinson’s disease in controlling speech and reducing dysarthria.

7. Designed by a certified Speech and Language Therapist (MSc, PGDip, BAHons, HPC registered, and member of RCSLT), DAF Pro is the most effective and low-latency DAF app available on Android.

8. Fluency: Helps manage stuttering and stammering, promoting clearer speech.

9. Improved Speech Articulation: Enhances articulation and clarity in people with various speech impairments.

10. DAF Pro is easy to use, making it an essential tool for anyone needing support with fluency or speech impairment.

11. Therapist-Approved: Developed by an experienced speech therapist to ensure the highest quality of care and efficacy.

DAF Professional Customer Insights

1. Please fix these two issue, your app is really great, and very helpful to stuttering peoplePlease enable the device to have the option of using the Bluetooth microphone instead of the phone microphone.

2. So what is happening, even though i am connected with Bluetooth earbud but if my phone is keeping far to me, it produces very slow voice sound as it is using mobiles speaker not headsets.

3. However, I find that when I use bluetooth earbuds, the app keeps using the phone microphone.

4. Personally, I would be more than willing to pay for a perfect FAF DAF app that manages to mask the sound of your voice and guarantees a more reliable experience, and I strongly encourage speechtools to add more tweaks.Returning user - I used this app a few years ago and it was superb though became less effective over time so u installed.

5. I have wireless earbuds but my phone microphone picks up every little sound, so it makes the app unusable.

6. 2) It uses mobile phone speaker instead of wireless Bluetooth earbuds.

7. I haven't been able to use it...xx Is it available online? I can't find the latest version 5.0.4.Have you uploaded it on Platstore? I have updated it but still not able to use.

8. As a result, the volume is low, and I've found over the years that for DAF FAF to be effective you need high volume, not to hear the sound of your own voice.

9. But it has following bugs: 1) not working with phone calls with my realme 5i device with android version 10.

10. It would be nice to have the min delay value above zero to compensate for latency in the procesing of the audio say Mike 40ms ?The app has SEVERE latency issues, and does not serve its purpose at all.

11. If you make the app able to use Bluetooth microphone it'll be 5 stars easy.

Steps to Troubleshoot & Fix DAF Professional Issues

1. Fix DAF Professional Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart DAF Professional: Restarting the app will resolve most errors.
  2. Update the DAF Professional App. Here is how:
    1. On Android goto PlayStore » Search for "DAF Professional" » Open DAF Professional » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for DAF Professional » click "UPDATE".
  3. Clear DAF Professional app cache: Clearing cached data will force your app to retrieve the latest data directly from DAF Professional servers.
    1. On Android, goto Settings » Apps » Select "DAF Professional" » click Storage » click "Clear Cache".
  4. Check DAF Professional app permissions. If any of these permissions required to use your device's features are disenabled, DAF Professional might not work.
  5. Uninstall and reinstall DAF Professional. If nothing else has worked, completely uninstall DAF Professional then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing DAF Professional not working


2. Fix DAF Professional Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make DAF Professional be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to DAF Professional not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, DAF Professional may not be able to connect to the Internet when running in the background.

Reported Issues