--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "American English Vocabulary (Learn and Test)" developer_entity: "Tin Dang" bundle_id: "com.mrsia.AmericanEnglishWords" app_store_id: "1237566950" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2017-06-15" report_date: "2026-09-01" last_verified: "2026-09-01T00:00:00.000Z" report_version: "2.1" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.2 data_age_days: 30 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "free", "mobile app", "app review", "app analysis", "english", "language", "learners"] canonical_url: "https://marlvel.ai/apps/american-english-vocabulary-learn-and-test" license: "CC-BY-NC 4.0" content_version: "v2" --- # American English Vocabulary (Learn and Test) Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 5 > **TL;DR:** American English Vocabulary (Learn and Test) is a education app by Tin Dang, rated 5/5 by 1 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** American English Vocabulary (Learn and Test) is a education app by Tin Dang. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 review) | | **Category** | Education | | **Developer** | Tin Dang | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 30d | ## Metadata & Market Performance - **Publisher:** Tin Dang - **Category:** Education - **Target Audience:** English language learners seeking to expand their American English vocabulary through structured, self-paced study. - **Platforms:** iOS - **Version Reviewed:** 2.1 - **Report Date:** 2026-09-01 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 1237566950 - **Bundle ID:** com.mrsia.AmericanEnglishWords - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-09-01 ## Executive Snapshot **What it is:** American English Vocabulary (Learn and Test) is an education app for iOS that provides a structured word list and native speaker audio for English learners. **Why users hire it:** The app removes the cost barrier for learners who need a simple, offline-accessible reference for vocabulary building. ## App DNA (Features & Intent) - **[Standard] Vocabulary Course:** Structured learning path covering 4,000 frequently used American English words. - **[Differentiator] Native Speaker Audio:** High-quality audio recordings for pronunciation practice. * *User Intent:* Users seek enhanced value through premium features. - **[Basic] Bookmark Memorized:** User-controlled tracking of learned vocabulary. * *User Intent:* Users want visibility into their own performance and progress. ## Market Position {#market-position} American English Vocabulary (Learn and Test) maintains a 5-star rating on the iOS App Store, though this is based on a single review. The lack of updates since 2017 places the app outside the active competitive set in the Education category. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app operates as a free, ad-supported utility with no visible in-app purchase or subscription gates. ## SWOT Analysis {#swot} **Core Strengths:** - Native speaker audio provides high-value pronunciation utility. - Bookmark memorized feature tracks user progress. **Growth Levers:** - Integration of spaced-repetition algorithms for retention. - Modernization of interface for current mobile standards. ## Recent Changes (v2 → v3) {#recent-changes} The competitive outlook has shifted from stable to declining as the 112-month development gap increases the risk of technical obsolescence and user attrition to more active, gamified alternatives. **Overall trend**: Declining **Compared at**: 2026-09-01 ### High-impact changes - **[Added] New Competitive Threats** (swot) - **[Shifted] Outlook Trend Downgrade** (positioning) ### Medium-impact changes - **[Removed] Removal of Opportunities** (swot) - **[Improved] PM Action Item Impact** (positioning) ## What's New - **Latest (v2.1, 9 years ago):** Technical update for watchOS 27 compatibility and auto layout fixes. ## App Momentum (Zombie) {#momentum} - Dormant development for 112 months. - No feature updates since 2017. > **Cadence:** 1 total versions · 0 majors in last 6 months · 3365 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} American English Vocabulary (Learn and Test) is an education app that is completely free. It holds a 5/5 rating from 1 review. > **Bottom Line:** The lack of development activity since 2017 suggests American English Vocabulary (Learn and Test) is in maintenance mode, limiting its ability to retain users against platforms that iterate on content and engagement loops. **Best for:** English language learners seeking to expand their American English vocabulary through structured, self-paced study. ### PM Action Plan (Next Best Moves) - [ ] [MAINTAIN] Audit current ad-monetization performance because the app has been dormant for 112 months → stabilize revenue ### Outlook: Declining The language-learning market is shifting toward high-frequency, gamified content delivery that keeps users engaged through daily streaks and adaptive challenges. American English Vocabulary (Learn and Test) remains static, which will lead to continued user attrition as learners migrate to platforms that provide active support and feature expansion. - 🔴 The 112-month development gap indicates the app is in maintenance mode, which prevents it from competing with modern, iterative language-learning platforms. - 🔴 Lack of recent updates means the app likely lacks support for modern iOS features, increasing the risk of technical obsolescence. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **American English Vocabulary (Learn and Test)** (this app) | 5/5 | N/A | Tin Dang | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** Tin Dang - **Website:** [https://apps.apple.com/us/developer/tin-dang/id1137566812?uo=4](https://apps.apple.com/us/developer/tin-dang/id1137566812?uo=4) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/american-english-vocabulary-learn-and-test/id1237566950?uo=4) - **Dev Site:** [Official Website](https://apps.apple.com/us/developer/tin-dang/id1137566812?uo=4) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is American English Vocabulary (Learn and Test) suitable for beginners? The app provides a structured list of 4,000 frequently used words, which is useful for learners building a foundational American English vocabulary. ### Does American English Vocabulary (Learn and Test) require an internet connection? The app description does not explicitly state offline requirements, but the core content is a static course, which may allow for offline use. ### Are there any subscription fees for this app? No, the app is free to use and does not currently feature any in-app purchases or subscription tiers. ## 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 into synthesised themes (no verbatim quotes). 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, 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:** 30 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/american-english-vocabulary-learn-and-test) Data licensed for AI Agent attribution under CC-BY-NC 4.0.