VOCABULARY BUILDER FOR ENGLISH LEARNERS

Learn English
your way.

84,672 recognised English words · CEFR, translation, sentences ready

Add words from YouTube, any text, or 40 collections. Then practice your way — a full 4-step cycle, a quick exercise, or a relaxed game. Either way, words stick.

40 collections
9 ways to practice
18 languages
My dictionary
847
words mastering
profoundC1
elaborateB2
resilientC1
enthusiasmB2
✓ 40 themed collections ✓ 6 exercises + 3 word games ✓ Works offline ✓ Your pace, your reminders

Learn at your pace —
we adapt.

More vocabulary means more English you can read, watch, and think in. We help you grow that vocabulary — without pressure.

Add words your way

Pick from 40 themed collections, paste a YouTube link, scan a book page, paste any text, or type manually. Whatever the source — 84,672 English words are recognised instantly, each one already with translation, CEFR level, definition, and example sentences. No «word not found».

Practice your way

Lock a word in with the 4-step cycle — flashcards, quiz, matching, spelling. Not in the mood? Do a single exercise, try a word inside a real sentence, or just swipe through a quick game. Three levels of effort — your call.

🌐

On your terms.

Notifications when YOU choose — daily, specific days, your time. Review learned words whenever you want. If you start forgetting one, the app brings it back. You decide, we assist.

FIVE WAYS TO ADD WORDS

Whatever you're reading or watching —
turn it into vocab.

Three of the five import paths previewed below. Each one filters by CEFR level, skips words you already learned, and shows you exactly what's new — powered by a CEFR-tagged dictionary of 84,672 English words with translation, definition, and example sentences ready to learn.

From YouTube
Paste link → recognised words
Pasted URL
youtube.com/watch?v=ks-_
Your body language may shape who you are — TED
YouTube
18:32
TED EN subtitles 342 lines
FILTER A1 A2 B1 B2 C1
55 NEW WORDS · 8 ALREADY IN YOUR DICT
elaborate
to develop in detail B2
resilient
able to recover C1
profound in dict C1
+ 52 more (selected by filter)
Add 47 words to dictionary
Paste any text
Article, book chapter, lyrics…
Your text

In a small village, a young inventor was determined to harness the power of the wind. After many failed attempts, his contraption finally whirred to life, a testament to his perseverance.

92 words processed 86 already known 6 new
Highlighted = new for you
harness
control and use energy B2
testament
clear proof of something C1
perseverance
persistence despite difficulty C1
+ 1 more (whirred — B2)
Add 4 words to dictionary
Snap a photo
Book pages, menus, signs
Chapter Three · page 47

She paused at the threshold, watching the candlelight flicker against the stone walls. The silhouette in the doorway turned, and she could no longer discern friend from stranger.

scanned
OCR 98% 156 words on page EN detected
4 NEW WORDS ABOVE YOUR LEVEL
threshold
doorway entry B2
silhouette
dark outline shape B2
discern
perceive or recognise C1
+ 1 more (flicker — B1)
Add 4 words to dictionary
Plus 2 more inside the app: themed collections and manual entry.

How it works

1

Choose a starting point

Take a 15-minute level test to see where you are, or jump straight into a collection that catches your eye.

2

Add the words you want

Collections, YouTube subtitles, pasted text, camera scan, or just typing. Whatever fits the moment.

3

Practice the 4-step cycle

Cards → quiz → matching → spelling. Then take it further — a word in a real sentence, synonyms, or a quick word game. The algorithm decides when each word comes back.

4

Watch your vocabulary grow

Roughly: 2,500 words = follow daily conversation. 4,000 = understand most TV. 8,000+ = think in English. Every mastered word is a step.

TRY IT — NO DOWNLOAD

Try the exercises right here.

4 learning stages, 2 premium bonus exercises, and 4 real collections from the app — Phrasal Verbs, Modern Slang, Travel, Finance. Click around.

Pick your effort
Full cycle · 4 exercises One quick exercise A light game

Liked it? The full app has 36 more collections, YouTube import, and your progress synced across devices.

Pricing

Try the free tier as long as you want. Pay only when you've decided this is for you.

Monthly
$6.49
per month
  • All 40 collections
  • Unlimited YouTube imports
  • All CEFR levels
  • All exercises + word games
  • Cloud sync
Start
Annual
$39.99
per year
SAVE 49% vs monthly
  • Everything in Monthly
  • ~$3.33 effective per month
  • Best for steady learners
Start
Best value
Lifetime
$99
one payment, forever
  • Everything in Annual
  • All future updates included
  • No subscription, no renewal
  • Pay once, learn forever
Get lifetime
Free forever

4 starter collections, 100 YouTube words/month, level test, 2 exercise stages. No credit card required.

FAQ

Who is WordStudy for? +

WordStudy is a vocabulary specialist — not a beginner course. It fits best for learners who already know the basics (B1+ level). If you want to grow your vocabulary at your own pace, are preparing for IELTS/TOEFL, work in English, or just want to read and watch more freely — it fits.

What makes WordStudy different from other vocabulary apps? +

Three things. First — words you've mastered stay mastered, no surprise repetitions. Second — a bonus Context exercise lets you practice each word inside a real sentence, not just in isolation. Third — five different ways to add words, so whatever you're reading or watching becomes study material.

Can I add my own words? +

Yes — five ways. Pick from 40 themed collections, paste a YouTube link to extract subtitles, paste any text, scan with your camera, or just type words manually. All flow into the same study queue.

Will it test me on words I already know? +

No. When you finish a word through the 4-step cycle, it's marked mastered and leaves the review queue permanently. You'll only see it again if you choose to look it up.

How does the YouTube import work? +

Paste any YouTube URL. The app reads the subtitles, filters out words below your level, and gives you only the new vocabulary worth learning. Works with TED talks, interviews, documentaries, podcasts with captions.

What's the «context» exercise? +

After the 4-step cycle (flashcards, quiz, matching, spelling), Context is a bonus exercise: you see a real example sentence with the word missing, and you fill it in. That's how a word goes from «I recognise this» to «I can use this».

Is there a free version? +

Yes. Free tier: 4 collections, 100 YouTube words per month, the level test, and 2 exercise stages. No card required.

What's in the Lifetime plan? +

$99 one-time. All 40 collections, unlimited imports, all 6 exercises plus 3 word games, all CEFR levels, cloud sync, and every future update. No subscription, nothing to renew.

Does it work offline? +

Yes. The dictionary and your word list live on your device. Daily study works without internet. Sync runs in the background when you reconnect.

Can I cancel anytime? +

Monthly and annual subscriptions cancel from your Apple ID or Google Play settings. Lifetime is a one-time purchase — nothing to cancel.

How do I delete my account? +

Either in-app (Profile → Settings → Delete account) or via wordsstudy.com/delete-account. Both wipe your data permanently.

What is the best app to learn English vocabulary from YouTube videos? +

WordStudy is built for exactly this: paste any YouTube link and it extracts the subtitles, filters out words below your level, and turns the new vocabulary into study cards — each word already with a translation, CEFR level, definition, and example sentences from a dictionary of 84,672 English words. A vocabulary specialist for B1+ learners, free on iOS and Android.

What's a good app to memorize English words and actually not forget them? +

WordStudy uses spaced repetition with one difference: once you master a word through its 4-step cycle (flashcards, quiz, matching, spelling), it stays mastered — no surprise repetitions. If you start forgetting one, the app brings it back. A bonus Context exercise has you use each word in a real sentence, moving it from «recognise» to «can use».

Which app is best for building English vocabulary for IELTS or TOEFL? +

WordStudy suits exam prep because it targets vocabulary growth at B1+: take a 15-minute level test, then add words from 40 themed collections, YouTube, pasted text, or a camera scan. Every word is CEFR-tagged (A1–C2) so you focus on the band you need. The free tier covers the level test and starter collections; no card required.

How many English words do I need to know to be fluent? +

Roughly: ~2,500 words to follow daily conversation, ~4,000 to understand most TV, and 8,000+ to think in English. WordStudy grows that vocabulary at your pace, from anything you read or watch, with a CEFR-tagged dictionary of 84,672 words.

Is WordStudy better than Anki, Memrise, or Duolingo for vocabulary? +

Different jobs. Duolingo teaches a course from scratch; Anki is manual flashcards you build yourself; WordStudy is a vocabulary specialist for learners who already have the basics (B1+) and want to grow words fast from their own sources — YouTube, text, books, or 40 ready collections — with every word pre-loaded with translation, definition, CEFR level, and example sentences, so no manual card-making.

Ready to grow your
English vocabulary?

Free to start. 5 minutes to add your first 20 words and try all the exercises.