
French learning, measured in traces.
Meaning, Sound,
Spelling.
Stories, Speech
& Production.
Trace Demo
Lumière diagnoses French word by word: what you know, what you almost know, and which trace needs repair next.
See the hidden trace of your French.
Instead of treating vocabulary as one score, Lumière separates memory into five traces: meaning, sound, spelling, sentence use, and production.
Signal first. Repetition only when it repairs something.
Our methodLumière at a Glance.
hello@lumiere.app
Mobile beta
Download Lumière for Android.
Everything in Lumière is in beta right now. The Android APK is ready for early testing, and the iOS app is coming soon.

Our method.
A simple philosophy:
a word is not one memory.
Knowing a French word means recognizing its meaning, hearing it clearly, spelling it, using it in a sentence, and producing it when needed. Lumière trains each trace separately.
Repair over repetition.
practice what actually failed.
When a learner misses a task, Lumière classifies the failure and sends the next repair: sound contrast, spelling recall, cloze, translation, pronunciation, or sentence use.



