Language Den
Capture, organize, and practice your next language.
Learning happens everywhere. Progress happens here.
14-day free trial. Then $7/mo or $50/yr.
If you take language study seriously, you already know this
Fluency does not come from a single app or a perfect curriculum. It comes from years of reading, listening, speaking, and noticing. You learn from books, podcasts, teachers, conversations, shows, and tools you already use.
The hard part is not finding material. The hard part is keeping what you discover. A word from a podcast disappears by tomorrow. A sentence from a novel never makes it into a review queue. Notes pile up in five places and none of them turn into lasting knowledge.
Serious learners do not need more entertainment. They need a place to return to every day: a personal library, a study workspace, and a practice habit that compounds.
That is what Language Den is for. It does not replace where you learn — it supports everything you learn, wherever it came from.
What Language Den is
A personal language library. A study workspace. A long-term companion for consistent practice — not a course, AI tutor, or streak game.
01 · Capture
Save it before it disappears
You hear a useful word, pause a show, underline a line. If you cannot save it in two seconds, it often never returns.
Notebook lets you jot the word and move on. Later, turn notes into full entries with definitions, examples, and cards.
02 · Organize
A library that stays useful
Scattered notes feel productive until you need them. Language Den keeps vocabulary structured: form, usage, examples, images, and how far you have come.
Any language you can type works the same way. No fixed language list, no curriculum you must follow — just the words that matter to you.
03 · Practice
Review when memory needs it
Spaced repetition works when you review just as you are about to forget — without becoming a scheduling hobbyist.
Language Den uses FSRS: you rate cards, the system plans the next review. Ten focused minutes of the right words beats an hour of random drill.
Who Language Den is for
Independent learners who study regularly and care about retention, not only exposure. People who pull vocabulary from many sources and want one place to keep it. Learners who prefer ownership of their system over a fixed path.
If you want five minutes of entertainment and a louder streak counter, this is probably not the right fit. If you want a tool you can trust for years of daily study, it is.
You might be a good fit if you:
- Already learn from books, media, classes, or conversation
- Want vocabulary to stick across months and years
- Prefer calm software that stays out of the way
- Are willing to show up for short, consistent practice
What a study day looks like
Not a dramatic transformation overnight. A study system that becomes part of how you live with a language.
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Morning review
Today’s reviews are waiting: the words you are about to forget, not the ones you already know cold. You work through the stack, finish, and get on with your day.
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Afternoon capture
Later you hear a new phrase and drop it into Notebook. Nothing important has to wait for a perfect study block.
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Weekend organize
Turn a few notes into full cards, attach an image where it helps, and leave the rest for next time.
Bring the vocabulary you already have
If you have spent months or years building decks elsewhere, that work still matters. Language Den imports Anki .apkg files and CSV exports. You can also add words by hand.
Start from where you are. Move into a workspace designed for language study, without throwing away what you have already built.
Help when you want it, control when you do not
Optional AI helpers can suggest translations and flashcard content so you spend more time studying and less time formatting cards. You can always write and edit everything yourself.
AI usage includes a monthly fair-use allowance so normal study stays affordable. There are no API keys to manage and no requirement to use AI at all.
Begin today’s study session
A clear path from account to first review.
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1
Create your account
Sign up and start a 14-day free trial.
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2
Add words
Type them in, import a deck, or capture with Notebook.
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3
Prepare cards
Add definitions, examples, and images yourself, or use built-in AI help.
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4
Review
Spaced repetition schedules the rest. Show up consistently.
Simple pricing
One plan, all features. Start with a 14-day free trial, then monthly or yearly.
- Unlimited words & flashcards
- AI flashcard generation
- Spaced repetition reviews
- All supported languages
- Everything in Monthly
- 2 months free
AI translation and flashcard generation include a fair-use allowance each month. No ads. No third-party trackers.
Common questions
Every plan includes a 14-day free trial with full features. Cancel during the trial and you will not be charged. AI helpers include a fair-use allowance so normal study stays affordable.
FSRS is a modern spaced repetition scheduler. It adapts to how you remember each item and plans reviews accordingly. You do not need to configure it.
Optional helpers can suggest translations and flashcard content. You can always add and edit cards manually. AI usage has a monthly fair-use allowance.
Any language you can type. There is no fixed language list.
Yes. Language Den imports .apkg files directly, and CSV as well.
Yes. Your account keeps vocabulary synced across devices.
Whatever you can sustain. Even a short daily review compounds over months. The scheduler handles timing. You handle consistency.
No. Language Den is the workspace where you organize and practice what you learn from those sources and others. Learning still happens everywhere.
Build a study system you can rely on
Language learning is a long practice. The tools you use every day should feel calm, practical, and steady enough to keep for years.
Capture what you discover. Organize what matters. Practice consistently.
14-day free trial. Then $7/mo or $50/yr.