DAF Pro - Professional Speech Therapy App for Fluency & Clarity
DAF Pro is the world's leading speech therapy app using delayed auditory feedback (DAF) technology, trusted by thousands across 100+ countries. This professional fluency therapy tool helps people with stuttering, stammering, Parkinson's disease, dysarthria, and speech disorders achieve clearer, more controlled speech through real-time auditory feedback.
Designed by a certified Speech-Language Pathologist (MSc, PGDip, BAHons, HPC registered, RCSLT member), DAF Pro delivers ultra-low latency (20ms on Google Pixel devices) making it the most responsive speech therapy app available for Android.
What is Delayed Auditory Feedback?
Delayed auditory feedback (DAF) is a clinically recognized speech therapy technique that helps control speech rate and improve speech fluency. By hearing your voice with a slight delay, DAF encourages slower, clearer speech and reduces speech impediments. This evidence-based therapy method has been proven effective for stuttering therapy, stammering treatment, and Parkinson's speech rehabilitation.
Who Benefits from DAF Pro?
• Stuttering & Stammering: Reduces speech blocks, repetitions, and prolongations while promoting fluent speech
• Parkinson's Disease: Controls speech rate, reduces dysarthria, improves speech clarity and intelligibility
• Dysarthria & Motor Speech Disorders: Reduces slurred speech, enhances articulation and speech precision
• Aphasia & Post-Stroke Speech: Supports speech rate control and clearer speech in expressive aphasia and post-stroke recovery
• TBI & Neurological Conditions: Useful for traumatic brain injury (TBI) and other motor speech disorders
• Speech Therapy Patients: Provides portable therapy for home practice and skill generalization
• Speech-Language Pathologists: Professional-grade clinical tool for therapy sessions
Key Features:
✓ Ultra-Low Latency: Industry-leading 20ms delay for natural, real-time feedback
✓ Background Mode: Continue speech therapy while using other apps
✓ Customizable Settings: Adjust delay time, pitch shift, microphone boost, and noise gate
✓ Recording & Playback: Track your progress and practice sessions
✓ Therapist-Designed: Developed by certified SLP using evidence-based techniques
✓ Privacy-Focused: GDPR compliant, no data collection, works offline
Why DAF Pro Stands Out:
Unlike consumer speech apps, DAF Pro is a professional-grade therapy tool designed for clinical effectiveness. Our advanced audio processing delivers the fastest response time, while background audio mode allows continuous therapy during daily activities - features unavailable in other anti-stuttering apps, stammering apps, or speech therapy tools.
Proven Results:
Delayed auditory feedback has been shown in clinical research to help 1 in 3 people who stutter achieve significant fluency improvement. Many users with Parkinson's disease report better speech rate control and reduced dysarthria symptoms when using DAF therapy consistently.
Perfect For:
• Daily speech fluency practice and therapy exercises
• Telephone confidence and workplace communication
• Public speaking preparation and presentation skills
• Complementing professional speech therapy sessions
• Managing speech anxiety and communication challenges
DAF Pro is your portable speech therapy solution - whether working independently or alongside a speech-language therapist, this fluency app brings professional-grade delayed auditory feedback therapy to your pocket.
Clinical-grade speech therapy tool | Evidence-based fluency treatment | Developed by certified Speech-Language Pathologist
Need support? Contact us at support@speechtools.co
