IELTS Vocabulary 4000
IELTS 4,000 Words with Audio
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
4,000 high-frequency IELTS words for Band 5.0-7.5+ — with audio on every word. Listen in the background while commuting, and study offline. Free for 414 words.
Your IELTS vocabulary, always in your pocket.
For anyone aiming for a target IELTS band score, planning to study at a university or graduate school abroad, or building the vocabulary to read academic papers and news in English.
Covers 4,000 high-frequency academic words for IELTS Band 5.0-7.5+ — with audio on every word and example sentence.
[Sources]
▶ Exam data
· Official IELTS sample questions
▶ Vocabulary lists
· NGSL (New General Service List 1.2, 2,801 general high-frequency words)
· AWL (Academic Word List, Coxhead 2000, 570 core academic families)
· NAWL (New Academic Word List 1.0, 963 families)
· AVL (Academic Vocabulary List, Gardner & Davies 2014)
▶ Corpus frequency
· COCA Academic (Corpus of Contemporary American English, Academic Sub-corpus)
· JACET 8000 (Japanese-learner baseline, used to subtract already-known high-frequency words)
These data sources were statistically combined — subtracting high-frequency words already known to Japanese learners — to select the 4,000 academic words most frequently required by IELTS.
[Learning features]
■ Audio on every word and example sentence
Hear natural native English pronunciation for every word and every example sentence, so you learn the sound along with the meaning.
■ Background Listening (plays while your screen is off)
Stream words continuously and keep learning on your commute, during chores, or at the gym — even with the screen locked.
■ Hide-to-memorize
Tap to hide the translation, then reveal it to check yourself. Faster than a flashcard, works one-handed.
■ Shuffle
Randomize the word order so you are testing real recall, not memorizing a sequence.
■ 6 translation languages
Switch the translation language anytime — Japanese, Vietnamese, Chinese (Simplified), Korean, Indonesian, and Thai. Translations and translation audio included.
■ Two-way display toggle
Switch between English → translation and translation → English to practice both recognition and production.
■ Synonyms, antonyms, and related words
Each word card shows related vocabulary to build a richer mental network.
■ Filtered review
Check off words you have learned and filter to the unchecked ones. Also filter by band, part of speech, or keyword.
■ Offline
After downloading, no internet required. Works on the subway, on planes, anywhere.
■ iPad layout
Optimized for larger screens so iPad users get the same polished experience.
[Plans]
Free : 414 words (IELTS Band 5.0-5.5)
Plus : 1,915 words (IELTS Band 5.0-6.5)
Pro : 4,000 words (IELTS Band 5.0-7.5+, full range)
Start free with the complete Band 5.0-5.5 level. Add the bands you need when you are ready to go further.
* Contents are subject to change without notice.
IELTS is a registered trademark of IDP, the British Council, and Cambridge Assessment English. This app is an independent study aid, not affiliated with or endorsed by them.
Terms of Use: https://www.juuvo.app/ielts4000/terms.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, JUUVO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Search History
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- JUUVO
- Size
- 81.4 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Plus Monthly $5.99
- Plus Yearly $29.99
- Pro Monthly $9.99
- Pro Yearly $59.99
- Copyright
- © 2026 JUUVO