Kotobia Spanish

Spaced repetition done right.

I want to learn:EspañolSoon

Speak more in every session. Remember more after every session.

Try nowDemoHow it works
01The science

Spaced repetition is the most proven way to learn. We run it on speaking.

A century of memory research keeps landing on the same answer: you don't forget at random, you forget on a curve, and the way to beat it is to review each thing right before it slips. That is the whole idea behind spaced repetition, and it works. The catch is that most apps aim it at recognition, matching a word to its meaning on a card. We aim the same math at production, the words you're about to forget how to say.

Kotobia: never re-learn what you already knowNo review: learn it once, then lose it100%MEMORYwhat you keepforgotteneach review~90% retention target1 day3 days1 week2 weeksa month+
What the research says

The forgetting curve

Without review, you lose most of what you just learned within days, and the loss is predictable enough to plot.

Ebbinghaus, 1885

The spacing effect

Spreading reviews out over time beats cramming them together. It is one of the most replicated findings in all of learning science.

Cepeda et al., 2006

Retrieval practice

Pulling an answer out of your own head beats reading it again. Saying it out loud, under a little pressure, is the strongest form of all.

Roediger & Karpicke, 2006

Your vocabulary reviews are timed by an algorithm that tracks how well you know each word and works out when you're likely to forget it. The word drills pull your shakiest words, the ones you're closest to losing, and the voice tutor builds its conversation from the words you've been reviewing, then makes you say them out loud. How you say them feeds straight back into the schedule.

02The voice tutor

A tutor that listens more than it talks

Reading apps got you this far. Then a real person asks a real question and nothing comes out. This is the part that gets the words out of your mouth. Here are a few of the moves it pulls.

Recasting, not correcting

It fixes you without stopping you

Make a mistake and the tutor just says it back the right way inside its reply. No red ink, no quiz. You barely notice, and you keep talking.

03Story mode

Learn inside a story, not a syllabus

A series you'll want to finish, written at your level so you can follow it from the first episode.

  • Listen to the scene. A new city, a chaotic roommate, a crush who texts back in seconds and then goes quiet for five days. Every line is voiced, and any line translates with a tap.
  • Check you followed. A short quiz after each scene tests whether you understood it, not just heard it.
  • Then play your part. Speak the episode yourself, with the same characters in the same setting. This time the words are yours.

Nueva en Madrid · E04 · No es una cita

Quick check: you try

What does Carmen insist?

04Focus drills

Your mistakes become your next lesson

The tutor lets small mistakes go so you keep talking. Then it saves them for the drills.

  • Caught after the session. Your spoken mistakes are picked out and sorted once you finish, even the ones the tutor let slide in the moment.
  • Your own sentence comes back. The exact line you got wrong returns as a fill-in-the-blank. You re-say your words, fixed, not a textbook's.
  • New words, captured. Reach for an English word mid-sentence and it lands in My words, ready to learn. You never type it in yourself.
  • Worst first. Recurring mistakes get ranked by how shaky they are right now, drilled hardest-first, and retired once they've stuck.
Live session · Spanish
Tutor
¿Cómo te fue el día?
You
Tuve una problema con… eh, el autobús.
Tutor
Ah, tuviste un problema con el autobús. ¿Qué pasó?

The tutor recasts the fix into the next sentence to keep you talking. Your slip slides by in the moment, but it isn't lost.

Pricing

The best AI speaking tutor, at a startlingly reasonable price.

Free
$0
forever · no card
  • ·Flashcards and the A1–A2 story, free forever.
  • ·A 3-day trial of the voice tutor, drills, and full story, no credit card.
  • ·About 30 tutor messages a day during the trial.
Start free
Pro Monthly
$19.99 / mo
month to month · cancel anytime
  • ·The full A1–C2 story, the voice tutor, and every drill.
  • ·About 50 tutor messages a day.
  • ·Cancel anytime. You keep Pro to the end of the paid period.
Go Pro
Pro Annual
Founding price
$9.99 / mo$13.33
billed annually at $119.88, half the monthly price. About 33 cents a day.
  • ·The full A1–C2 story, the voice tutor, and every drill.
  • ·About 50 tutor messages a day.
  • ·Cancel anytime. You keep Pro to the end of the paid period.
Go Pro

Every account gets the 3-day tutor trial, no card needed. It starts with your first conversation, not at sign-up. Try it, then upgrade to Pro whenever you like.

Founding-member pricing: $119.88 a year for early members.

Say it out loud.

Try now