Language learning powered by spaced repetition

Make every word stick.

LENGO brings each word back just as it starts to fade, until it sits in your long-term memory. Spaced repetition for 29 languages, with lessons written by real teachers.

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Free on iPhone, iPad and Mac

The Words screen of the LENGO app, with new, weak, medium and strong words

The science

Your brain is built to forget.

A new word starts to fade within hours. Spaced repetition turns that around, and LENGO has been built on it from day one.

1
You learn a new word.
It's fresh right now. Without practice, it fades within hours and is mostly gone within days.
2
A review, right on time.
LENGO brings the word back just as it starts to fade. Remembering it makes the memory stronger, so it fades more slowly next time.
3
The gaps grow.
Every right answer lets the word wait longer before it returns: an hour, six hours, a day, three days, a week.
4
It stays.
After a few well-timed reviews the word sits in your long-term memory, and your practice time goes to the words you don't know yet.

MemoryTimeNew wordAbout to forget+1 hr+1h+6 hr+6h+1 day+1d+3 days+3d+1 week+1wLong-term memoryWithout reviewsWith LENGO

How LENGO teaches

Every word has a strength.

LENGO keeps track of how well you know each word. A right answer moves it up and gives it a longer break before it comes back. A wrong answer moves it one step down, so you see it again sooner.

New

Words you haven't practiced yet. LENGO picks new ones for you every day and puts them first in line.

First in line

Weak

You've met it, but it hasn't stuck yet. It comes back within minutes until it does.

10 min to 20 min

Medium

You're getting there. Every right answer gives it a longer break.

1 hr to 1 day

Strong

You know it. It still checks in every few days, so it stays that way.

3 days to 1 week

Try it

Watch a word grow stronger.

Answer the way you would in the app. The bar shows the word's strength, and the clock shows when LENGO brings it back.

la mariposabutterflyNewWeakMediumStrong

New words come first in your next practice.

A vocabulary pack in LENGO with the strength of every word

The Progress screen of LENGO with the streak and the words learned

5day streak

A little every day

Seven new words a day.

Short daily practice beats long cramming. Every day LENGO picks seven new words for you and mixes them with the ones due for review. A few minutes are enough, and they add up. Want more? Choose up to 20 a day.

7new words a day

49new words a week

2,555new words a year

Practice

Five ways to practice. One memory.

Recognizing a word, hearing it, saying it and writing it are different skills. LENGO trains all of them, and every answer counts toward the same word strength.

Memorize

Flashcards that flip and speak.

Quiz

Pick the right answer, with pictures.

Listening

Train your ear with clear voices.

Speaking

Say it out loud and get feedback.

Test

Check what you know before a real exam.

Harder counts more

A right answer in a quiz moves a word one step up, listening two and typing it from memory three. A mistake moves it one step back.

Written by teachers

Real teachers wrote every lesson.

The vocabulary and grammar in all 29 languages are created by professional language teachers. Grammar comes with clear rules and examples, because adults learn faster when they understand how a language works.

LENGO on a Mac, showing vocabulary and grammar packs

Hundreds of packs

From everyday life to irregular verbs, with audio for every word.

Grammar that makes sense

Rules, examples and exercises, so you can build your own sentences.

Made for the Mac, too

The full app on a big screen, with a sidebar and keyboard shortcuts.

Everywhere

Your words on every screen.

Practice on your iPhone, unfold your iPhone Duo for the big view, and continue on your iPad or Mac. Your words and progress sync between devices.

iPhoneiPhone DuoiPadMac

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Languages

Where do you want to go?

29 languages, each with its own colors and its own corner of the world.

Recommended by teachers

Loved by learners and teachers.

“LENGO allows me to study grammar and new vocabulary on the go and at my own pace. Sometimes, when I'm on the bus, I whip out my cell phone and do a couple of exercises.”

Ignacio Vega MatillaProfessor and founder of Pluricultural

“With the LENGO app, you can do all kinds of exercises on grammar and vocabulary topics and get direct feedback. For my viewers, the app is simply the ideal addition to my YouTube videos.”