aimdev

Vocabula

Học từ vựng nhớ lâu — lặp lại ngắt quãng FSRS và luyện phát âm ngay trên thiết bị.

Vocabula

Vocabula là ứng dụng từ vựng theo hướng local-first, xây dựng trên lặp lại ngắt quãng FSRS, tám kiểu bài tập — gồm cả ghép câu — và chấm điểm phát âm ngay trên thiết bị. Kho từ đã kiểm chứng được đối chiếu với từ điển song ngữ và được AI kiểm định độ chính xác: tiếng Anh là lộ trình sâu nhất, được dạy sang 18 tiếng mẹ đẻ, và bạn có thể chọn bất kỳ cặp nào trong 19 ngôn ngữ — AI trên thiết bị sẽ dịch mọi thứ chưa có trong kho từ tuyển chọn. Bắt đầu miễn phí, không cần tài khoản — 5 từ mới mỗi ngày từ bộ thẻ English Starter. Nâng lên Pro để có từ vựng không giới hạn, các gói từ và cụm từ được bổ sung liên tục, đồng bộ đám mây và sao lưu đa thiết bị.

Get it on Google Play
Download on the App Store

Everything the learning loop needs is free: the scheduler, the voice scoring and the full starter deck. Five new words a day is the only cap — when you want more, a second device or a backup, that's Pro.

Free vs Pro

Free

$0 — no account required

  • Unlimited reviews of cards already in progress
  • 5 new cards per day
  • Full English starter deck (~1,400 words)
  • All exercise types + on-device pronunciation
  • Up to 10 custom words (local only)
  • Offline after first load
Recommended

Pro

Unlimited capacity + cloud sync

  • Unlimited new words per day (up to your daily limit)
  • Unlimited custom words, synced
  • Cross-device cloud sync and backup
  • Deck export and import (JSON)
  • Subscribe in the app — billed by the App Store or Google Play
  • Account required for sync

Pricing

Pro

US$4.99

per month

No ads. No selling your data. Prices in US dollars — the App Store or Google Play bills you in your local currency. Cancel anytime in your store subscriptions.

Privacy & data

  • Audio stays on your device — Whisper scoring does not upload recordings
  • Optional account for sync; app works offline without login
  • Export your data as JSON or delete your account from Profile
  • NZ Privacy Act baseline with GDPR-standard rights for global users
  • Subscriptions billed by the App Store or Google Play — we never see card numbers

Sign in

Sign in with email magic link or Google when you want sync and Pro. Stay anonymous on one device forever — the free tier needs no account.

Features

  • Comes back before you forget — every word gets its own schedule; you review it at the last useful moment, not on a fixed calendar.
  • Say it out loud — pronunciation is scored on your phone. Your voice never leaves the device, and it works offline.
  • Eight ways to practise — recognise it, spell it, fill the gap, build the sentence, build what you hear, pronounce it, shadow it, tell apart words that sound alike.
  • In your own language — definitions and translations in Ukrainian, Russian, Spanish, French, German, Italian, Polish, Portuguese, Dutch, Turkish, Arabic, Persian, Hindi, Indonesian, Vietnamese, Korean, Japanese and Chinese.
  • Your own words — paste an IELTS list, a chapter or a lecture; Vocabula fills in definitions, examples and pronunciation and schedules them like the built-in deck.
  • Phrases, not just words — “as soon as possible”, “how are you” — learned as one card, practised as one unit.
  • Ten minutes a day — the app shows exactly what’s due today and nothing more. Short daily sessions beat an hour on Sunday.
  • Under the hood, for the curious — FSRS scheduling, on-device Whisper scoring, local-first storage, and a dictionary-checked, human-reviewed catalog that keeps growing across 19 languages.

Questions people ask

Is Vocabula free?
Yes. About 1,400 common English words, 5 new words a day, all eight exercise types and pronunciation scoring are free, with no account and no ads. Pro adds unlimited new words, unlimited custom words, cloud sync and backup.
Can I use it for IELTS or TOEFL vocabulary?
Paste your word list and Vocabula fills in definitions, example sentences and pronunciation, then schedules each word so it comes back right before you'd forget it. Up to 10 custom words are free; Pro removes the limit and syncs them.
Which languages can I learn English from?
Ukrainian, Russian, Spanish, French, German, Italian, Polish, Portuguese, Dutch, Turkish, Arabic, Persian, Hindi, Indonesian, Vietnamese, Korean, Japanese and Chinese. Definitions and translations appear in the language you pick.
Does pronunciation scoring send my voice anywhere?
No. Scoring runs on your phone with a downloaded voice model. Recordings never leave the device, and it works without a signal.
What does Pro cost?
US$4.99 a month or US$29.99 a year, with a 7-day free trial on the annual plan, billed by the App Store or Google Play in your local currency. Cancel any time in your store subscriptions.