Lumen
your AI tutor
70 seconds · no sign-up needed
You just need to practice.
Lumen is built for that.
Real speaking practice — one conversation at a time.
Sound familiar
You freeze mid-sentence
The words are there — the moment isn't.
Years of study, still not ready
Waiting to feel confident never works.
Exercises, not conversations
Practice that doesn't transfer to real life.
What changes
Speak from session one
Real conversations, right from the start.
Progress you can feel
Your level, tracked every conversation.
A tutor that keeps up with you
Natural, patient, always on your level.
The structure of a private tutor.
Every session is a real conversation. Corrections, vocabulary, and homework happen automatically.
Step 1 — Placement
Start with a real conversation.
A few quick questions, then you just talk. Lumen hears how you actually speak — and places you far more accurately than a quiz ever could.
Live correction — in session
The weather was muy bien last week.
¡Bueno! And did you enjoy the food?
Real-time corrections
Corrected in the moment, not at the end.
Lumen flags mistakes inline, explains why, then keeps talking. Mistakes become lessons without breaking the flow.
Voice sessions
Any time, anywhere
Text chat
Same tutor, no pressure
Homework
One focused task per session
Vocabulary
Your words, reviewed on schedule
Progress you can see
Watch your practice
build up day by day.
Every session minute, every new word, every correction is tracked and visualised. Flip through the weeks to see exactly how consistent you've been — and where to push harder.
- Session time — how many minutes you practiced each day
- New words — vocabulary added from real conversations
- Corrections — mistakes caught and turned into lessons
This week
160 min this week
Active 5 / 7 days
Daily average
Session time
New words
Corrections
Example data — your real stats appear after your first session
The honest difference
The attention of a private tutor.
At a fraction of the cost.
A great human tutor is expensive, hard to schedule, and stops when you're not in the room. Lumen is available every day, remembers everything, and never loses patience.
Other approaches
Tap the matching word
Repeat the same phrase
Earn XP, lose hearts
Paying a human tutor by the hour
No real speaking practice
Lumen
Have real conversations
Get corrected in the moment
Follow a personalised path
Costs less than one lesson with a human tutor
Actually start speaking
Pricing
One simple plan. Everything unlocked.
Unlimited conversation practice. Start with a free placement, then choose your plan.
Pay every 6 months
Lowest price — billed every 6 months
$59.99 billed every 6 months
- ✓Unlimited voice & text practice
- ✓Live corrections + vocabulary
- ✓Your personalised path
Pay monthly
Flexible — cancel anytime
$19.99 billed monthly
- ✓Unlimited voice & text practice
- ✓Live corrections + vocabulary
- ✓Your personalised path
Your tutor is ready.
Have your first real conversation free. Get your level. Get a plan. Start speaking today.
Free placement · Then choose a plan · Ready in 60 seconds