--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "英検®英単語" developer_entity: "StudySwitch, Inc." bundle_id: "jp.co.gakkonet.quizshootereiken" app_store_id: "946696503" category: "Education" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-04-10" report_date: "2026-05-24" last_verified: "2026-05-24T13:38:58.094Z" report_version: "8.18.1" total_reviews: 96 overall_rating: 4.65 confidence: "low" confidence_score: 0.5 data_age_days: 34 momentum_velocity: "maintenance" intelligence_version: 4 nemesis: "Migaku: Really Learn Languages" competitor_count: 11 tags: ["education", "freemium", "mobile app", "app review", "app analysis", "students", "preparing", "eiken"] canonical_url: "https://marlvel.ai/intel-report/education/jp-co-gakkonet-quizshootereiken" license: "CC-BY-NC 4.0" content_version: "v2" --- # 英検®英単語 App Audit ## TL;DR {#tldr} - **Category**: Education · Freemium - **Signal**: Rating 4.65 > **TL;DR:** 英検®英単語 is a education app by StudySwitch, Inc., rated 4.65/5 by 96 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** 英検®英単語 is a education app by StudySwitch, Inc.. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.65/5 (96 reviews) | | **Category** | Education | | **Developer** | StudySwitch, Inc. | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.5/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** StudySwitch, Inc. - **Category:** Education - **Target Audience:** Students preparing for Eiken English proficiency exams ranging from Grade 3 to Grade 2. - **Platforms:** iOS & Android - **Version Audited:** 8.18.1 - **Audit Date:** 2026-05-24 - **Signal Count:** 5 reviews analyzed - **Confidence:** Low (0.5/1.0) - **App Store ID (iOS):** 946696503 - **Bundle ID:** jp.co.gakkonet.quizshootereiken - **Google Play ID:** jp.co.gakkonet.quizshootereiken - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-05-24 - **Short Description:** The definitive guide to Eiken (English Proficiency Test) vocabulary preparation. Includes a total of 7816 questions. Learn the most frequently appearing vocabulary for Eiken Grade 3, Pre-2, Pre-2, and Grade 2! ## Executive Snapshot **What it is:** 英検®英単語 is a quiz-based vocabulary preparation app for Eiken certification exams on iOS and Android. **Why users hire it:** Students hire this app to master frequently appearing vocabulary for specific Eiken grades, aiming to pass certification tests with minimal study friction. ## App DNA (Features & Intent) - **[Standard] Eiken Vocabulary Database:** 7816 questions covering Eiken Grade 2, Pre-2 Plus, Pre-2, and Grade 3 vocabulary - **[Differentiator] Writing Auto-Grading:** Automated evaluation of user-submitted writing responses for Eiken-specific tasks - **[Standard] Serious Study Plan (Ad-Free):** Paid in-app purchase to remove advertisements from the learning interface * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. ## Market Position {#market-position} 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. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free tier with ad-supported content, Serious Study Plan (Ad-Free) paid tier - **Analysis:** Freemium model monetizes via ad-inventory for the majority of users, with a paid-gate option to remove ads for high-intent learners. ## SWOT Analysis {#swot} **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 ## Recent Changes (v3 → v4) {#recent-changes} The app transitioned from a technical crisis management phase to a focus on passive engagement and distribution, though sentiment tracking is currently unavailable. **Overall trend**: Stable **Compared at**: 2026-05-24 ### High-impact changes - **[Removed] Sentiment Data Unavailable** (sentiment) — User sentiment, rating, and complaint themes were removed from the current report, preventing comparison against the previous 4.64 rating. - **[Shifted] Strategic Focus** (positioning) — PM priorities shifted from fixing audio/data-sync bugs to implementing lockscreen widgets and auditing the Android acquisition funnel. ### Medium-impact changes - **[Shifted] SWOT Analysis Update** (swot) — Weaknesses shifted from technical instability (audio/data loss) to feature gaps (lack of passive learning) and distribution issues (0 Android ratings). - **[Improved] Outlook Trend** (positioning) — Outlook trend improved from declining to stable as the focus moved from immediate churn risks to long-term competitive differentiation. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### 英検®英単語 vs Migaku: Really Learn Languages — Head to Head - **[Migaku: Really Learn Languages](https://marlvel.ai/intel-report/education/migaku-really-learn-languages)** by Migaku Inc.: Migaku competes for the same serious language learners by offering advanced, media-centric study tools that challenge the target app's static vocabulary-focused approach. - **Key differences:** - Offers interactive media subtitles that allow users to learn vocabulary directly from authentic video content - Provides one-click flashcard creation, significantly reducing the manual effort required to build personalized study decks - Focuses on immersive learning workflows rather than the target app's traditional, quiz-based Eiken test preparation - **Where 英検®英単語 wins:** - ✅ Provides a highly specialized, curriculum-aligned focus specifically for the Eiken certification exam - ✅ Offers a completely free, ad-supported model that lowers the barrier to entry for students - **Where Migaku: Really Learn Languages wins:** - ❌ Delivers a more sophisticated, modern UX that integrates with external media for contextual learning - ❌ Features a more robust, long-term retention system compared to the target's basic quiz format - **Verdict:** The target app should double down on its Eiken-specific niche while introducing gamified progress tracking to counter Migaku's superior engagement features. ### Contenders (Strong Challengers) - **[WordBit Korean (for English)](https://marlvel.ai/intel-report/education/wordbit-korean-for-english)** by WordBit: Like its French counterpart, this app competes for the user's limited daily attention span through passive, notification-based learning. - Leverages passive learning through lockscreen widgets, a feature entirely absent from the target app's interface - Offers multi-mode flashcards that provide more variety in study methods than the target's quiz-only structure - **[VerbForms Deutsch](https://marlvel.ai/intel-report/education/com-lexiforms-verbforms-d)** by Laura Mueller: This app competes by offering deep, specialized training in verb conjugation, targeting the same academic-focused language learner segment. - Provides a comprehensive verb database with detailed conjugation training that exceeds the target's general vocabulary focus - Includes advanced progress tracking metrics that allow users to visualize their mastery of specific grammatical structures - **[WordBit French (for English)](https://marlvel.ai/intel-report/education/wordbit-french-for-english)** by WordBit: WordBit competes for the same 'casual study' demographic by utilizing lockscreen notifications to drive daily vocabulary exposure. - 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 - **[Onevoca - Flashcards](https://marlvel.ai/intel-report/education/com-suhz23-socksock)** by Minsu Kim: Onevoca competes by providing a flexible, user-generated flashcard platform that appeals to students who prefer custom study materials over fixed Eiken content. - Integrates AI text-to-speech to provide audio pronunciation for any custom vocabulary list created by users - Supports multi-language decks, whereas the target app is strictly limited to Eiken-specific English vocabulary ### Peers (What They Do Better) - **[Learn Arabic (Beginners)](https://marlvel.ai/intel-report/education/learn-arabic-beginners)** by BNR LANGUAGES INC.: This app competes by providing a high-quality, gamified experience for beginners, similar to the target's goal of accessible learning. - 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 - **[Learn Hindi (Beginners)](https://marlvel.ai/intel-report/education/learn-hindi-beginners)** by BNR LANGUAGES INC.: This app competes for the same beginner audience by offering a structured, gamified curriculum for language acquisition. - Includes a weekly ranking system that gamifies the learning process to improve long-term user retention - Offers native audio playback for all vocabulary, ensuring correct pronunciation training for beginner learners - **[EF Campus Connect](https://marlvel.ai/intel-report/education/com-ef-campusconnect)** by Signum International AG: EF Campus Connect serves the same demographic of English learners, though it focuses on the administrative and logistical side of language study. - 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 - **[Learn Persian (Beginners)](https://marlvel.ai/intel-report/education/learn-persian-beginners)** by BNR LANGUAGES INC.: This app occupies the same 'beginner-focused' language learning space, utilizing gamification to drive user retention. - Features a weekly ranking system that introduces social competition to encourage consistent daily study habits - Provides full offline course access, allowing users to study without a stable internet connection ### New Kids on the Block (What's Innovative) - **[FlashPrint](https://marlvel.ai/intel-report/education/flashprint)** by Rodney Paulin-Bullock: FlashPrint is a new competitor leveraging generative AI to automate the creation of study materials. - Employs AI content transformation to automatically generate flashcards and images from user-provided study topics - **[Targman](https://marlvel.ai/intel-report/education/targman)** by MicroComp LLC: Targman is a new entrant that threatens the target app by modernizing vocabulary lookup through OCR technology. - Uses camera-first OCR lookup to allow users to translate words instantly from physical textbooks or documents ## What's New - **Latest (v2.50.0, 8 years ago):** Fixed minor bugs. ## App Momentum (Maintenance) {#momentum} - Maintained stable Eiken curriculum database. - Ships ad-free paid tier updates. > **Cadence:** 5 total versions · 2 majors in last 6 months · 43 days since last update · 94 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} 英検®英単語 is an established education app that is free with in-app purchases. With a 4.65/5 rating from 96 reviews, it shows polarized user reception. > **Bottom Line:** 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. **Best for:** Students preparing for Eiken English proficiency exams ranging from Grade 3 to Grade 2. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] 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 Deprioritize the planned UI refresh for the settings menu — widget retention impact is higher.)_ - [ ] [PIVOT] [HIGH IMPACT] 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: deprioritize Pause new content updates for Grade 3 — fixing the funnel is a prerequisite for growth.)_ ### 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) ### Outlook: 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. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.65/5 | | Total Reviews | 96 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **英検®英単語** (this app) | 4.65/5 | N/A | StudySwitch, Inc. | | [VerbForms Deutsch](https://marlvel.ai/intel-report/education/com-lexiforms-verbforms-d) | 5.0/5 | N/A | Laura Mueller | | [Onevoca - Flashcards](https://marlvel.ai/intel-report/education/com-suhz23-socksock) | 4.7/5 | N/A | Minsu Kim | | [FlashPrint](https://marlvel.ai/intel-report/education/flashprint) | 5.0/5 | N/A | Rodney Paulin-Bullock | | [Migaku: Really Learn Languages](https://marlvel.ai/intel-report/education/migaku-really-learn-languages) | 4.4/5 | N/A | Migaku Inc. | | [Targman](https://marlvel.ai/intel-report/education/targman) | N/A/5 | N/A | MicroComp LLC | ## Company Profile - **Developer:** StudySwitch, Inc. - **Website:** [https://www.studyswitch.co.jp/?appstore](https://www.studyswitch.co.jp/?appstore) - **Social:** [Facebook](https://www.facebook.com/391154754640977?ref=embed_page) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/%E8%8B%B1%E6%A4%9C-%E8%8B%B1%E5%8D%98%E8%AA%9E/id946696503?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=jp.co.gakkonet.quizshootereiken&hl=en&gl=us) - **Dev Site:** [Official Website](https://www.studyswitch.co.jp/?appstore) - **Sources:** Developer website content, About us / company information, App store metadata, User reviews. ## Related Intel Reports - [*VerbForms Deutsch*](https://marlvel.ai/intel-report/education/com-lexiforms-verbforms-d) (Laura Mueller) — 5.0/5 Rating | N/A Sentiment - [*Onevoca - Flashcards*](https://marlvel.ai/intel-report/education/com-suhz23-socksock) (Minsu Kim) — 4.7/5 Rating | N/A Sentiment - [*FlashPrint*](https://marlvel.ai/intel-report/education/flashprint) (Rodney Paulin-Bullock) — 5.0/5 Rating | N/A Sentiment - [*Migaku: Really Learn Languages*](https://marlvel.ai/intel-report/education/migaku-really-learn-languages) (Migaku Inc.) — 4.4/5 Rating | N/A Sentiment - [*Targman*](https://marlvel.ai/intel-report/education/targman) (MicroComp LLC) — N/A Rating | N/A Sentiment - [*Learn Persian (Beginners)*](https://marlvel.ai/intel-report/education/learn-persian-beginners) (BNR LANGUAGES INC.) — 4.5/5 Rating | N/A Sentiment - [*Learn Hindi (Beginners)*](https://marlvel.ai/intel-report/education/learn-hindi-beginners) (BNR LANGUAGES INC.) — 4.8/5 Rating | Positive Sentiment - [*Learn Arabic (Beginners)*](https://marlvel.ai/intel-report/education/learn-arabic-beginners) (BNR LANGUAGES INC.) — 4.6/5 Rating | Positive Sentiment - [*WordBit Korean (for English)*](https://marlvel.ai/intel-report/education/wordbit-korean-for-english) (WordBit) — 3.5/5 Rating | Mixed Sentiment - [*WordBit French (for English)*](https://marlvel.ai/intel-report/education/wordbit-french-for-english) (WordBit) — 4.3/5 Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.5/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 5 - **Data Sources:** user reviews, developer website, company about page, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/education/jp-co-gakkonet-quizshootereiken) Data licensed for AI Agent attribution under CC-BY-NC 4.0.