Rhotacism is a speech sound disorder that makes it difficult to pronounce the /r/ sound correctly — and it affects millions of people worldwide. Traditional therapy helps, but progress is slow when feedback only comes once a week in a session.
Rhotacism App changes that. Record yourself saying a word, and the app analyses the acoustic fingerprint of your /r/ sound in real time — measuring the exact frequency that separates a correct /r/ from a /w/ or /l/ substitution. You get instant, specific feedback on what your tongue is doing and how to correct it.
FEATURES
• Four therapy levels: Initial /r/ (red, rabbit), Medial /r/ (forest, orange), Final /r/ (car, floor), and Consonant Clusters (green, three, friend)
• Real-time rhoticity score after every recording
• Targeted coaching cues — not just "try again," but exactly what to adjust
• Session progress tracker showing your last 8 attempts
• Level-up system that advances you when you hit 3 consecutive scores above 80%
HOW IT WORKS
The app uses AI speech recognition to verify you attempted the target word, then analyses the third formant frequency (F3) of your /r/ sound — the single most reliable acoustic marker of rhoticity. A lower F3 means a more correct /r/. The result is displayed as a score from 0 to 100% alongside the raw Hz measurement and a specific technique cue.
WHO IT'S FOR
• Children and adults working through rhotacism with a speech-language pathologist
• People who want to practice between therapy appointments
• Parents supporting a child's speech therapy at home
Note: This app is a practice tool and is not a substitute for professional speech therapy.
