SPS tracking, RESTART-DCM module (parent/child), fluency assessment, and at-home exercises.
1%
of the adult population worldwide stutters
3–4×
more common in boys
75%
of children who stutter recover spontaneously before age 8
Short, captioned explainers to send to a patient or their family after a session.
Stuttering (F98.5) shows up as involuntary blocks, prolongations, and repetitions. The person is fully aware of the difficulty and often develops speech anxiety, avoidance strategies, and social withdrawal. The challenge is as much emotional as it is motor.
ICD-10: F98.5Blocks: the word "locks up" and won't start
Repetitions: sounds or syllables repeated involuntarily
Prolongations: a sound stretched out unintentionally
Secondary behaviors: facial grimacing, muscle tension
Anticipatory anxiety and avoidance of speaking situations
The child speaks, the parent rephrases at a reduced rate. The app measures both SPS curves at once and calculates the gap. Based on Franken's Demands-Capacities model (2007).
A structured progression tailored to each fluency/rate profile. Every step introduces a clinical goal: breath pausing, chunking, easy onset, self-monitoring.
Graded exposure to silence to desensitize initiation anxiety, after Van Riper (1973). The patient gradually tolerates longer silences without compensatory speech.
These modules run right in your browser, microphone optional. This is what your patients see between sessions.
Read this sentence aloud:
“The cat is quietly eating its food in the kitchen.”
Keep your level in the green zone for 10 seconds.
1. Initial assessment
SPS measured in reading and spontaneous speech. Compared to Van Zaalen norms by age.
2. Guided path
8 progressive steps: from rate work to self-monitoring in spontaneous speech.
3. RESTART-DCM
For children: the parent vs. child SPS curve displays in real time. Goal: the parent speaks no faster than the child.
4. Silence module
Graded exposure to silence. Tolerated duration measured and tracked across sessions.
5. Follow-up
Between-session SPS curve, full history, prescriptions adjustable at every visit.
The patient speaks, the analysis engine pre-fills the measures, you keep control of every value - and the Word report is ready at the end.
Age-adapted pathway · from age 2 → adult
Clinical orientation aids, to be validated in consultation. The app does not establish any diagnosis.
The Camperdown protocol (rate regulation + prolonged speech) produces fluency gains maintained at 12 months.
O'Brian et al. (2003), Camperdown Program. JSLHR
Matching the parent's speech rate to the child's (speaking no faster than them) is one of the levers on the speaking environment of children aged 4 to 6 who stutter.
Franken & Putker-de Bruijn (2007), RESTART-DCM
Desensitization to silence reduces initiation anxiety and avoidance behaviors.
Van Riper (1973), The Treatment of Stuttering
What the main tools offer for this indication, according to their official websites.
| Tool | SPS measurement (rate) | RESTART-DCM module | Built for clinicians | No install | SLP tracking | Free for patients |
|---|---|---|---|---|---|---|
| Talk Slower | ||||||
| #Stuttering.app | ||||||
| Stamurai | ||||||
| DAF Pro |
= partial or limited feature. Sources: official tool websites, May 2026.
Your patients practice at home with the same biofeedback as in session. You see their progress before they even walk in.
These indications share a mechanism or a close differential diagnosis. Explore the dedicated tools.
Van Zaalen SPS biofeedback, assessment battery, cognitive-load exercises and at-home tracking.
See detailsUnderstand, detect, and track word-final disfluencies: mostly in children with autism or a neurodevelopmental disorder, sometimes into adolescence or adulthood.
See details