Langsi teaches you Russian vocabulary in real sentences, not isolated flashcards. Spaced repetition schedules every review for you: hard words come back sooner, words you know less often. Listen first, then read, with audio for every word and sentence. Add your own word lists or learn your teacher's lists, on the web or on Android. No ads, nothing to distract you.
Other vocabulary apps often leave words standing on their own. Langsi connects new words to what you already know through real example sentences. So you learn not only what a word means, but how it's used.
Example English → Russian: tea and soup at home
Get ahead through context
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Here's what the word means:
Your word gets placed into your personal learning system.
Your next repetition is automatically scheduled.
Every answer makes your word selection more precise.
Now let's anchor it with real examples.
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Listen closely to the word and sentences — pronunciation sticks best when you say it out loud right along with it.
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| Word | Transliteration | Meaning |
|---|---|---|
| Я | Ya | I |
| чувствую | chuvstvuyu | feel |
| любовь | lyubov' | love |
| к | k | to |
| тебе | tebe | you |
This is how Langsi breaks down every example sentence: word by word, with translation and transliteration.
And this is just the beginning — there's a lot more waiting in the full course.
Your Progress
Langsi always shows you exactly where you stand — and what's next.
Personal daily goal that you can adjust to your needs
Leitner repetition system makes sure nothing gets forgotten
Visible progress per word, category, and day
Downloadable daily summaries — perfect for continuing to learn with AI
Learn words and vocabulary with real example sentences instead of isolated vocabulary lists.
Mastery level per word, as a percentage — shows exactly how confident you already are with a word
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Create lists, share them with classes and see each student's progress. Your students learn your lists for free.
For teachers: lists and classes are included in the subscription. Students learn teacher lists for free, even without a subscription.
No. Every word and sentence is also shown in Latin-letter transliteration, so you can start right away and get used to the Cyrillic script step by step.
Yes. The combination of meaning, audio, example sentences and transliteration helps you learn new words in a clear context from day one — no prior knowledge needed.
Yes. In Russian, the stressed syllable often changes how vowels sound. Every word and example sentence can be played aloud, so you can train pronunciation and stress directly — not just read the spelling.
You can start for free. Langsi runs directly in your browser, no installation needed — see the pricing section above for the details.
A flashcard deck shows you a word in isolation and expects you to remember it. Langsi shows every word inside a real, natural sentence — with audio, transliteration and a full word-by-word breakdown — so you see how the word is actually used, including its case endings, not just what it means in the abstract.