For anything you’re learning.

A new language
Words and phrases from lessons, chats and books.
Italiano · phrase
In bocca al lupo!
Good luck! Literally, “into the wolf’s mouth”
Lymi for language learning
A course or lesson
What you need to know for a class or an exam.
Statistics
p-value
How likely data this extreme would be if nothing were going on
Work
Terms from a new job or project.
Programming
idempotent
Doing it twice has the same effect as doing it once
A hobby
Anything you pick up and want to remember.
Chess
zugzwang
Any move you make makes your position worse

How spaced repetition works.

Remember a card, and Lymi waits longer before showing it again. Forget it, and it comes back soon.

Reviewed with Lymi
Learned once, never revisited

Illustration only. Your review timing adapts to what you remember.

Recall

Recalling beats rereading

Lymi asks before it shows the answer. Trying to remember something makes it stick better than reading it again, as Roediger and Karpicke found in 2006.

Spacing

Longer gaps, longer memory

Spreading reviews out helps you remember for longer. In 2013, Dunlosky and colleagues rated testing yourself and spacing out practice as highly effective.

Remember first, then check.

Try to recall the meaning, then show it. Pick how well you knew it. Hard cards come back sooner, easy ones later.

Tonight4 due

Suomi · verb

kuulua

Type the term. AI fills in the rest.

AI adds the meaning, an example and the pronunciation. It never changes what you typed, and everything it wrote is marked.

Term

kuulua

Lesson

Meaning

To belong; to be heard

Example

Haluan kuulua tähän joukkoon.

Say it

KOO-loo-ah

Make flashcards in ChatGPT, Claude or Gemini.

Ask your AI assistant to add a card while you chat. It shows up in Lymi, ready to review.

Lymi with AI assistants

That chess term you just used, add it to my deck.

Added to Chess, with the meaning and an example.Chess · newzugzwangAny move you make makes your position worse

And what am I due to review tonight?

Seven cards. Four Finnish, two chess terms, one from that signal-processing paper.

Connect your own tools.

Lymi is open source and has a public API. Add cards from a phone shortcut or a spreadsheet, or show what’s due on your own site.

Read the docs API reference Source code

Shortcuts
Spreadsheets
AI assistants

Widgets
Websites
Your own app

Don’t start from scratch.

Import your flashcards from Anki or Mochi. Decks, pictures and review history come too, so nothing you’ve learned starts over.

Moving from Anki Moving from Mochi

Import

Spanish.apkg · 14 MB

What comes across

1,240cards

16,402past reviews

4decks

Cards keep the due dates they had in Anki.
180 cards bring their pictures.

Join the free beta.

The private beta is free. Leave your email and we’ll write when a place opens.