IELTS 3400 Vocabulary vs Study Penguin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IELTS 3400 Vocabulary
Master over 3,400 essential IELTS words with six engaging study modes. Track your progress with visual graphs and learn offline. Improve your English vocabulary for exams and international study.
- 3400+ IELTS vocabulary words
- 6 diverse study modes
- Definitions and example sentences
- Native audio pronunciation
- Progress tracking and mastery levels
- Offline study capability
- Dark mode support
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Master 3,400+ essential IELTS words through 6 engaging study modes designed for effective memorization. ==================== WHO IS THIS APP FOR? ==================== • IELTS test takers preparing for Academic or General Training • Students planning to study abroad • Professionals seeking immigration or work visas • Anyone wanting to systematically build English vocabulary • Learners preparing for other English exams (TOEFL, Cambridge, etc.) ==================== KEY FEATURES ==================== 【COMPREHENSIVE WORD LIST】 Over 3,400 carefully selected high-frequency IELTS words covering all band score levels from 5.0 to 7.0+. Each word includes definitions, example sentences, and native audio pronunciation. 【6 STUDY MODES】 Never get bored with diverse learning methods: ① Multiple Choice (JP→EN) Select the correct English word from Japanese meaning. Perfect for building foundational vocabulary. ② Multiple Choice (EN→JP) Choose the Japanese translation from the English word. Great for reading comprehension. ③ Definition Quiz Identify words from their English definitions. Develops native-like word sense. ④ Flashcards Classic card-based memorization. Swipe to mark words as "Known" or "Still Learning" for efficient review. ⑤ Word Ordering Arrange words to form correct sentences. Builds grammar skills and natural word order intuition. ⑥ Audio Learning Listen to native pronunciation while studying. Essential for Listening and Speaking preparation. 【PROGRESS TRACKING】 • Visual graphs showing daily study activity • Word mastery levels: Learned, Uncertain, Difficult • Section-by-section completion rates • Stay motivated with clear progress indicators 【USER-FRIENDLY DESIGN】 • Clean, intuitive interface • Dark mode for comfortable studying • Works offline - study anywhere, anytime ==================== WHY VOCABULARY MATTERS FOR IELTS ==================== Vocabulary directly impacts every section of the IELTS exam: • READING: Unknown words slow down comprehension • LISTENING: You can't answer what you don't understand • WRITING: Repetitive vocabulary leads to lower scores • SPEAKING: Lexical resource is a key scoring criterion ==================== START TODAY ==================== Your journey to IELTS success begins with vocabulary. Just 10 minutes a day can make a significant difference in your score. Download now and start learning! AI & Voice New monthly AI & Voice plan: word Q&A in Japanese, English definitions and examples with Japanese meanings and translations, and audio for your own words. Optional auto-renewing monthly subscription, separate from lifetime Premium. No lifetime purchase is required. Bundled audio remains available without this subscription. AI requires internet access. Monthly usage limits reset when the subscription renews. See the purchase screen for your local price. Manage or cancel in your store account settings. Terms of Use: https://leto-app.com/terms/ielts Privacy Policy: https://leto-app.com/privacy/ielts
Study Penguin
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Study Penguin — Your All-in-One Study Companion Everything you need to study smarter, all in one app. Study Penguin combines time tracking, task management, spaced repetition flashcards, Pomodoro timer, and daily to-do lists into a single, beautifully designed experience. Whether you're preparing for exams, learning a new skill, or building daily study habits, Study Penguin keeps you focused, organized, and motivated. KEY FEATURES — Study Timer & Pomodoro — Track every minute of your study sessions with precision. Choose between a flexible stopwatch, countdown timer, or structured Pomodoro technique with customizable focus and break intervals. Ambient background sounds — rain, classroom, brown noise, pencil writing, simmering pot, and underwater — help you stay in the zone. — Smart To-Do Lists — Plan your day with purpose. Set up to 3 daily tasks, 2 challenge goals that push your limits, and 2 "Not To-Do" items to eliminate distractions. Your morning flow guides you through goal-setting each day, keeping your intentions clear and actionable. — Flashcards with Spaced Repetition — Create rich flashcards with text, images, and audio. Our spaced repetition algorithm schedules reviews at optimal intervals so you remember more with less effort. Track mastery levels and watch your knowledge grow over time. — Subject & Task Management — Organize your studies by subject and track time spent on each. Review history shows exactly when and how long you studied, making it easy to identify gaps and balance your workload. — Daily News & Motivation — Start each day with a personalized study newspaper featuring your progress, achievements, and an editorial space for reflection. Look back on past editions to see how far you've come. — Detailed Records & Analytics — Visualize your study patterns with daily, weekly, and monthly breakdowns. See your streaks, total hours, and subject distribution at a glance. Data-driven insights help you optimize your routine. — iCloud Sync — Seamlessly sync all your data across devices. Switch between iPhone and iPad without losing a single flashcard, study session, or achievement. — Calming Design — A clean, distraction-free interface with light and dark modes. Study Penguin is designed to feel like a trusted companion — always there when you need it, never in the way. Study Penguin is built for every learner: students preparing for university entrance exams, professionals studying for certifications, language learners building vocabulary, and anyone who believes in the power of consistent daily effort. Download Study Penguin today and transform the way you study.
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Verdict
The clearest difference is in-app purchases: Study Penguin at none against IELTS 3400 Vocabulary's 2. Study Penguin also leads on ads (none vs shown) and update cadence (daily vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. IELTS 3400 Vocabulary sells 2 in-app purchases, starting at $1.99 per month. Study Penguin asks for nothing beyond the download.
IELTS 3400 Vocabulary ships an update every 2 weeks, Study Penguin daily. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | IELTS 3400 Vocabulary | Study Penguin |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 276 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryosuke Yokota | Rei Minamida |
In-app purchases
IELTS 3400 Vocabulary
- AI & Voice$1.991 Month
- Full Access$14.99
Study Penguin
No in-app purchases
Questions
Is IELTS 3400 Vocabulary free?
Is Study Penguin free?
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Which is updated more often, IELTS 3400 Vocabulary or Study Penguin?
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