--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "English Vocab: Word Builder" developer_entity: "Bancha Rajainthong" bundle_id: "com.eswizardry.toeic-vocabulary" app_store_id: "6451350376" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-03-14" report_date: "2026-10-14" last_verified: "2026-10-14T00:00:00.000Z" report_version: "1.2.5" total_reviews: 0 confidence: "low" confidence_score: 0.3 data_age_days: 30 momentum_velocity: "zombie" intelligence_version: 2 tags: ["education", "free", "mobile app", "app review", "app analysis", "students", "professionals", "preparing"] canonical_url: "https://marlvel.ai/apps/english-vocab-word-builder" license: "CC-BY-NC 4.0" content_version: "v2" --- # English Vocab: Word Builder Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free > **TL;DR:** English Vocab: Word Builder is a education app by Bancha Rajainthong, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** English Vocab: Word Builder is a education app by Bancha Rajainthong. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Education | | **Developer** | Bancha Rajainthong | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 30d | ## Metadata & Market Performance - **Publisher:** Bancha Rajainthong - **Category:** Education - **Target Audience:** Students and professionals preparing for English proficiency exams like the TOEIC. - **Platforms:** iOS - **Version Reviewed:** 1.2.5 - **Report Date:** 2026-10-14 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6451350376 - **Bundle ID:** com.eswizardry.toeic-vocabulary - **Data Window:** Analysis based on signals collected up to 2026-10-14 ## Executive Snapshot **What it is:** English Vocab: Word Builder is an education app for TOEIC exam preparation that combines vocabulary lists, listening exercises, and gamified recall on iOS. **Why users hire it:** The app removes the cognitive friction of manual exam preparation by automating review schedules through a spaced-repetition algorithm. ## App DNA (Features & Intent) - **[Differentiator] Spaced Repetition Algorithm:** Reinforces long-term memory by presenting words at calculated intervals. - **[Standard] Interactive Learning Games:** Includes matching and quizzes to test vocabulary recall. - **[Standard] Listening Exercises:** Simulates exam conditions with authentic audio recordings. ## Market Position {#market-position} English Vocab: Word Builder operates as a free-to-use education tool in a competitive exam-prep market. The lack of recent updates (214 days since last release) limits its ability to maintain chart relevance against active rivals. ## Monetization Strategy - **Model:** Free - **Tiers:** Free access to all features - **Analysis:** The app is currently offered as a free product with no visible subscription or in-app purchase gates. ## SWOT Analysis {#swot} **Core Strengths:** - Spaced-repetition algorithm automates long-term memory reinforcement **Growth Levers:** - Introduce premium ad-free tier to monetize active users ## What's New - **Latest (v1.2.5, 7 months ago):** Maintenance update focused on bug fixes and performance optimizations. ## App Momentum (Zombie) {#momentum} - Quiet 7 months, maintenance mode only. - Last major release 214 days ago. > **Cadence:** 1 total versions · 0 majors in last 6 months · 214 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} English Vocab: Word Builder is an education app that is completely free. > **Bottom Line:** English Vocab: Word Builder relies on its core spaced-repetition mechanism to retain users, but the 214-day development silence leaves it vulnerable to competitors with active content updates. **Best for:** Students and professionals preparing for English proficiency exams like the TOEIC. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Ship a content-refresh update because the 214-day silence risks user churn → increase daily active usage ### Outlook: Declining The exam-prep market is consolidating around apps that provide frequent content updates and live-ops. English Vocab: Word Builder's lack of development activity leaves it exposed to competitors that can better serve test-takers with updated materials. - 🔴 The 214-day development silence indicates the product is in maintenance mode, which will likely lead to user attrition as exam requirements evolve. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **English Vocab: Word Builder** (this app) | N/A/5 | N/A | Bancha Rajainthong | | [ALPA: Lernspiele für Kinder](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) | N/A/5 | N/A | ALPA Kids OU | | [ATPdigital (Legacy)](https://marlvel.ai/apps/atpdigital-legacy) | 2.0/5 | n/a | Bristol Groundschool International Ltd | | [Catbus Student](https://marlvel.ai/apps/catbus-student) | 4.1/5 | N/A | Cohota Join Stock Company | | [Chinese Tibetan Dictionary](https://marlvel.ai/apps/chinese-tibetan-dictionary) | 5.0/5 | Thrilled | Lobsang Monlam16922404891 | | [Insights to Behavior](https://marlvel.ai/apps/insights-to-behavior) | N/A/5 | N/A | Insights to Behavior | ## Company Profile - **Developer:** Bancha Rajainthong - **Website:** [https://eswizardry.github.io/toeic-app-landing-page/](https://eswizardry.github.io/toeic-app-landing-page/) - **Social:** [Instagram](https://instagram.com/eswizardry) · [X/Twitter](https://twitter.com/eswizardy) ## Data Sources & Links - **App Store ID:** 6451350376 - **Dev Site:** [Official Website](https://eswizardry.github.io/toeic-app-landing-page/) - **Sources:** Developer website content, About us / company information, App store metadata. ## Related Intel Reports - [*ALPA: Lernspiele für Kinder*](https://marlvel.ai/apps/alpa-lernspiele-fur-kinder) (ALPA Kids OU) · N/A Rating - [*ATPdigital (Legacy)*](https://marlvel.ai/apps/atpdigital-legacy) (Bristol Groundschool International Ltd) · 2.0/5 Rating - [*Catbus Student*](https://marlvel.ai/apps/catbus-student) (Cohota Join Stock Company) · 4.1/5 Rating - [*Chinese Tibetan Dictionary*](https://marlvel.ai/apps/chinese-tibetan-dictionary) (Lobsang Monlam16922404891) · 5.0/5 Rating | Excellent Sentiment - [*Insights to Behavior*](https://marlvel.ai/apps/insights-to-behavior) (Insights to Behavior) · N/A Rating - [*Legasthenie & LRS Trainer*](https://marlvel.ai/apps/legasthenie-lrs-trainer) (Matthias Aigner) · N/A Rating - [*Lyceum Leaf Parent*](https://marlvel.ai/apps/lyceum-leaf-parent) (Techcess Business Solutions (Pvt) Ltd) · N/A Rating - [*Money Matrix (CAD)*](https://marlvel.ai/apps/money-matrix-cad) (Blooming Kids Software LLC) · 5.0/5 Rating - [*myTibetan*](https://marlvel.ai/apps/mytibetan) (Yury Nevalenny) · 4.8/5 Rating | Excellent Sentiment - [*Quran Treasure Island for Kids*](https://marlvel.ai/apps/quran-treasure-island-for-kids) (Akeela Manekia) · 4.9/5 Rating ## Frequently Asked Questions {#faq} ### Is English Vocab: Word Builder free to use? Yes, English Vocab: Word Builder is currently offered as a free product with no visible subscription or in-app purchase gates. ### Does English Vocab: Word Builder help with TOEIC preparation? Yes, the app is specifically designed for students and professionals preparing for English proficiency exams like the TOEIC. ### Is English Vocab: Word Builder still being updated? The app has been in maintenance mode for over 200 days, with no significant feature updates released recently. ## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** 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:** 30 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/english-vocab-word-builder) Data licensed for AI Agent attribution under CC-BY-NC 4.0.