Report updated May 24, 2026
英検®英単語
For students preparing for Eiken English proficiency exams ranging from Grade 3 to Grade 2.
英検®英単語 is an established education app that is free with in-app purchases. With a 4.6/5 rating from 96 reviews, it shows polarized user reception.
What is 英検®英単語?
英検®英単語 is a quiz-based vocabulary preparation app for Eiken certification exams on iOS and Android.
Students hire this app to master frequently appearing vocabulary for specific Eiken grades, aiming to pass certification tests with minimal study friction.
Current Momentum
v8.18 · 1mo ago
Maintenance- Maintained stable Eiken curriculum database.
- Ships ad-free paid tier updates.
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
7816 questions covering Eiken Grade 2, Pre-2 Plus, Pre-2, and Grade 3 vocabulary
Automated evaluation of user-submitted writing responses for Eiken-specific tasks
Paid in-app purchase to remove advertisements from the learning interface
How much does it cost?
- Free tier with ad-supported content
- Serious Study Plan (Ad-Free) paid tier
Freemium model monetizes via ad-inventory for the majority of users, with a paid-gate option to remove ads for high-intent learners.
Who Built It?
What other apps does StudySwitch make?
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for 英検®英単語?
Where is it available?
Localized markets (1)
How's The Education Market?
How does it evolve in the Education market?
The app occupies a specialized niche in the Education category, anchored by a 4.64 rating on iOS despite a low review volume of 96. The absence of Android adoption (0 ratings) signals a failure to capture the broader mobile student demographic.
Rank progression
1 active ranking tracked — 30-day window
Which niche is 英検®英単語 in?
to master vocabulary for Eiken proficiency exams
Explore the full Language Learning Flashcards niche
Every app in this space — 165 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
Tobo competes directly by offering a high-volume, gamified vocabulary acquisition system that targets the same 'study-on-the-go' demographic as our Eiken-focused app.
Contenders(4)
This app competes for the same user attention by offering a structured, gamified approach to vocabulary mastery.
It utilizes the same successful gamified flashcard engine as our primary nemesis, threatening our market share through superior UX.
This app shares the same 'Tobo' infrastructure, posing a threat through its proven, high-retention gamified vocabulary model.
WordBit competes for the same 'micro-learning' time slot by utilizing lockscreen notifications to force vocabulary exposure.
Differentiators
- Utilizes a lockscreen learning mechanism that forces vocabulary exposure every time the user unlocks their phone
- Implements a study alarm system that ensures consistent daily practice without requiring active app engagement
Same space(3)
It competes for the same 'beginner' learner segment by offering a low-friction, gamified path to language acquisition.
Differentiators
- Allows users to control native audio playback speed, catering to different levels of listening comprehension
- Uses a gamified weekly ranking system to drive daily active usage among its user base
Banter uses AI to solve the 'speaking' pain point, which is the natural next step for students mastering vocabulary.
It serves the broader English learning ecosystem, capturing students who need both vocabulary and logistical support.
Differentiators
- Integrates travel document verification and schedule management, creating a utility-based moat for enrolled students
- Benefits from a massive global brand presence that provides inherent trust and distribution advantages
Compare 英検®英単語 against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for 英検®英単語
Strengths to defend, gaps to attack
Core Strengths
- Curriculum-aligned Eiken database functions as a specialized barrier to entry
- Freemium model lowers the barrier to entry for price-sensitive students
Critical Frictions
- 0 rating count on Android indicates poor visibility
- Lack of passive learning features like lockscreen widgets
Growth Levers
- Integration of OCR-based lookup for physical Eiken textbooks
- Expansion into gamified progress tracking to improve daily active usage
Market Threats
- AI-driven competitors like FlashPrint automate study material creation
- Lockscreen-based rivals capture daily attention without requiring active app engagement
What are the next best moves?
Ship lockscreen widget integration because passive learning is a top differentiator for competitors → increase daily active usage
WordBit and other competitors use lockscreen widgets to drive daily exposure, which is absent here.
Trade-off: Deprioritize the planned UI refresh for the settings menu — widget retention impact is higher.
Audit Android acquisition funnel because 0 ratings suggest a broken install path → capture missing market share
The 0 rating count on Android compared to 96 on iOS indicates a significant distribution failure.
Trade-off: Pause new content updates for Grade 3 — fixing the funnel is a prerequisite for growth.
A counter-intuitive read
The app's lack of gamification is actually a strength for high-intent exam takers who prioritize speed over engagement, suggesting that adding social features might alienate the core serious-study demographic.
Feature Gaps vs Competitors
- Lockscreen widgets (available in WordBit but missing here)
- OCR-based textbook lookup (available in Targman but missing here)
- AI-generated flashcards (available in FlashPrint but missing here)
Key Takeaways
The app secures a niche through Eiken-specific content, but the static quiz interface risks obsolescence against AI-driven study tools, so the PM must prioritize passive engagement features to prevent user churn.
Where Is It Heading?
Stable
The Eiken preparation market is shifting toward AI-assisted and passive learning tools that reduce the manual effort of study. Without evolving beyond static quizzes, this app will likely remain a legacy utility that loses ground to more modern, automated alternatives.
The app maintains a stable Eiken-focused curriculum, but the lack of feature expansion suggests a maintenance-mode posture rather than active growth.
The absence of Android user activity indicates a failure to scale beyond the iOS base, which limits the total addressable market for ad revenue.