Case study · My product · built solo

Mon Verbe

An app to practise speaking. It listens, scores and advises right away.

The need

You learn to speak well by speaking. But there is rarely someone to listen, let alone every day.

Mon Verbe takes that place: ten minutes out loud, and instant feedback on diction, pace and the structure of the speech.

Speaking
Ten minutes out loud, in the app installed on the phone.
PWA
Transcription
The browser writes what is said. The server takes over on phones that cannot do it.
Browser · server
Scoring
Word-by-word accuracy, pace, filler words, connectors, repetitions.
TypeScript
The coach
A comment on the substance of the speech, then a conversation to improve.
AI
Tracking
Account, history and day streak, synced across devices.
Supabase
The reminder
A notification and an email to come back the next day.
Push · Brevo

Live listening
Speech recognition in the browser, with a server-side transcription fallback for phones that do not support it.
Scoring
Word-by-word accuracy, pace in syllables per second, filler words, connectors, repetitions.
AI coach
A comment on the substance of the speech, then a conversation with the coach to improve.
Tracks
Job interview, Campus France interview, meeting, ceremony, and a different challenge every day.
Accounts and progress
Sign-in with Google or an emailed code, progress synced across devices, history and day streak.
Reminders
Push notifications and scheduled emails: welcome, daily reminder, Monday review.
Offline
Installable on the phone and usable without a connection.
Admin
Dashboard, usage quotas, two-factor authentication for administrators.

ReactViteTypeScriptSupabasePWABrevo