---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "單字知識王"
developer_entity: "CMoney"
bundle_id: "CMoney.EnglishKing"
app_store_id: "6466239865"
category: "Education"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2023-10-26"
report_date: "2026-05-22"
last_verified: "2026-05-22T00:00:00.000Z"
report_version: "1.0.3"
total_reviews: 3
overall_rating: 5
confidence: "low"
confidence_score: 0.05
data_age_days: 87
momentum_velocity: "zombie"
intelligence_version: 4
nemesis: "読めないと恥ずかしい脳トレ漢字クイズ"
competitor_count: 8
tags: ["education", "free", "mobile app", "app review", "app analysis", "students", "candidates", "looking"]
canonical_url: "https://marlvel.ai/apps/cmoney-englishking"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# 單字知識王 Intelligence Report

## TL;DR {#tldr}

- **Category**: Education · Free
- **Signal**: Rating 5

> **TL;DR:** 單字知識王 is a education app by CMoney, rated 5/5 by 3 users, available on iOS.
>
> **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** 單字知識王 is a education app by CMoney.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 5/5 (3 reviews) |
| **Category** | Education |
| **Developer** | CMoney |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Low (0.05/1.0) |
| **Data Age** | 87d |

## Metadata & Market Performance
- **Publisher:** CMoney
- **Category:** Education
- **Target Audience:** Students and exam candidates looking for gamified English vocabulary practice.
- **Platforms:** iOS
- **Version Reviewed:** 1.0.3
- **Report Date:** 2026-05-22
- **Signal Count:** 3 reviews analyzed
- **Confidence:** Low (0.05/1.0)
- **App Store ID (iOS):** 6466239865
- **Bundle ID:** CMoney.EnglishKing
- **Performance Trend:** Mixed
- **Data Window:** Analysis based on signals collected up to 2026-05-22

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** 單字知識王 is a competitive vocabulary quiz app for students on iOS.
**Why users hire it:** Users hire this app to turn rote exam preparation into a social, gamified experience, which reduces the cognitive load of traditional study methods.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Competitive Quiz Mode:** Real-time English vocabulary trivia matches against other users
  * *User Intent:* Users are driven by competitive achievement and recognition.
- **[Standard] Curated Vocabulary Database:** 3,000-word library focused on exam preparation
- **[Standard] Progress Tracking:** Difficulty scaling per level with personal performance review
  * *User Intent:* Users seek enhanced value through premium features.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

The app maintains a 5-star rating across 3 reviews, but the low volume signals a lack of market penetration compared to established quiz competitors.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Free to download and play
- **Analysis:** Monetization relies on ad-supported engagement within a free-to-play structure.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Real-time multiplayer interaction fosters a community-driven competitive environment
- 3,000-word exam-focused library aligns with specific student needs

**Growth Levers:**
- Integrate audio-based phonics to address the current curriculum gap
- Expand into B2B partnerships with exam-prep centers


<!-- /section:swot -->
## Recent Changes (v3 → v4) {#recent-changes}

The report reflects a shift in focus toward competitive benchmarking against quiz-based apps and a pivot in monetization strategy, despite the app remaining in a stagnant development state.

**Overall trend**: Mixed
**Compared at**: 2026-05-22

### High-impact changes
- **[Removed] Sentiment Data Availability** (sentiment)
- **[Added] Monetization and Pedagogical Weaknesses** (swot)

### Medium-impact changes
- **[Shifted] Monetization Strategy Pivot** (pricing)
- **[Shifted] Competitive Landscape Refinement** (positioning)

<!-- section:rivals -->
## Rivals Landscape {#rivals}

> Competitive positioning identified by AI analysis of app features, category, and market signals.

### 單字知識王 vs 読めないと恥ずかしい脳トレ漢字クイズ
- **[読めないと恥ずかしい脳トレ漢字クイズ](https://marlvel.ai/apps/jp-co-gakkonet-quizninjaadultkanjiyomi)** by StudySwitch, Inc.: This app competes directly by utilizing a high-frequency, quiz-based gamification model to drive educational engagement, mirroring this app's strategy of turning rote memorization into a competitive game.
  - **Key differences:**
    - Maintains a massive, established user base with nearly 1,000 ratings, creating a significant social proof barrier.
    - Offers a dual-monetization model with both ad-supported free access and a dedicated ad-free premium experience.
    - Demonstrates consistent development velocity with three major releases in the last six months to maintain relevance.

### Contenders (Strong Challengers)
- **[書けないと恥ずかしい脳トレ漢字クイズ](https://marlvel.ai/apps/jp-co-gakkonet-quizninjaadultkanjikaki)** by StudySwitch, Inc.: This app challenges this app by applying the same quiz-based educational framework to a different skill set, specifically targeting users interested in handwriting and brain training.
  - Integrates handwriting recognition technology, providing a tactile learning experience that this app's multiple-choice format lacks.
  - Positions itself as a brain-training utility, appealing to a wider demographic beyond just language learners.

### Peers (What They Do Better)
- **[Kids Spelling School](https://marlvel.ai/apps/kids-spelling-school)** by siriwit nambutdee: It occupies the same educational niche by focusing on vocabulary and spelling through interactive, game-like interfaces.
  - Uses a simple drag-and-drop mechanic that is more accessible for younger children than this app's quiz format.
  - Includes audio pronunciation features to assist with phonics, which is a critical gap in this app's current offering.
- **[Flowency: Verbal Fluency Coach](https://marlvel.ai/apps/flowency-verbal-fluency-coach)** by Digital Atomic: It competes for the user's time by offering a gamified, AI-driven approach to improving verbal communication and vocabulary.
  - Employs AI-based feedback analysis to provide personalized coaching that static quiz apps cannot replicate.
  - Targets the Health & Fitness category, positioning language improvement as a cognitive performance and wellness goal.
- **[Gappy Learns Reading](https://marlvel.ai/apps/gappy-learns-reading)** by Little 10 Robot: This app targets the early-stage literacy market, overlapping with this app's goal of vocabulary building through gamified mechanics.
  - Features a house customization system that provides long-term retention mechanics beyond simple quiz-based progression.
  - Focuses on a progressive CVC and sight word curriculum specifically designed for younger, foundational learners.
- **[Spellable App](https://marlvel.ai/apps/spellable-app)** by Dulcie Crowther: It shares the educational objective of improving language proficiency through structured, inquiry-based learning modules.
  - Utilizes Structured Word Inquiry (SWI) pedagogy, offering a more academic and scientific approach to spelling.
  - Provides custom lesson requests, allowing for a personalized curriculum that this app's fixed library lacks.

### New Kids on the Block (What's Innovative)
- **[The Federalist Papers - Study](https://marlvel.ai/apps/the-federalist-papers-study)** by Hector Minaya: While content-specific, it competes for the same 'educational study' time-share by using flashcards and quizzes.
  - Combines audio narration with interactive flashcards to provide a multi-modal study experience for complex historical texts.
- **[Better Spelling for Adults](https://marlvel.ai/apps/better-spelling-for-adults)** by Benjamin Kaiser: This newcomer enters the market with a focus on adult-oriented vocabulary, directly challenging this app's core user base.
  - Implements a Spaced Repetition System (SRS) to optimize long-term memory retention, a superior pedagogical approach to standard quizzes.

<!-- /section:rivals -->
<!-- section:whats-new -->
## What's New

- **Latest (v1.0.3, 2 years ago):** Enhanced gamification experience with new level progression and a leaderboard to track player rankings.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- Last major update October 2023.
- No significant feature additions recently.

> **Cadence:** 1 total versions · 1 majors in last 6 months · 938 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

單字知識王 is an established education app that is completely free.
With a 5/5 rating from 3 reviews, it shows polarized user reception.

<!-- speakable-start -->
> **Bottom Line:** 單字知識王 holds its niche through competitive social mechanics but bleeds potential users to more comprehensive AI-driven alternatives, so revenue growth hinges on introducing premium tiers and audio-based learning features.
<!-- speakable-end -->

**Best for:** Students and exam candidates looking for gamified English vocabulary practice.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [INVEST] Ship audio-based phonics because it is a critical gap vs Kids Spelling School → increase user retention
<!-- /section:pm-actions -->

<!-- section:feature-gaps -->
### Feature Gaps vs Competitors


- Audio pronunciation (available in Kids Spelling School but absent here)
<!-- /section:feature-gaps -->

<!-- section:outlook -->
### Outlook: Stable

The educational quiz market is consolidating around apps that offer personalized, AI-driven feedback and multi-modal learning. 單字知識王 remains exposed due to its static, multiple-choice format, so the team must introduce audio or AI features to remain relevant against modern competitors.

- 🔴 The lack of audio features creates a pedagogical gap that competitors are filling, which will likely increase churn among foundational learners.
- ⚪ The current update cadence is stagnant, suggesting the app is in maintenance mode rather than active growth.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Overall Rating | 5/5 |
| Total Reviews | 3 |
| Confidence | Low |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Mixed |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **單字知識王** (this app) | 5/5 | N/A | CMoney |
| [The Federalist Papers - Study](https://marlvel.ai/apps/the-federalist-papers-study) | N/A/5 | N/A | Hector Minaya |
| [Gappy Learns Reading](https://marlvel.ai/apps/gappy-learns-reading) | 3.1/5 | N/A | Little 10 Robot |
| [Better Spelling for Adults](https://marlvel.ai/apps/better-spelling-for-adults) | N/A/5 | N/A | Benjamin Kaiser |
| [Flowency: Verbal Fluency Coach](https://marlvel.ai/apps/flowency-verbal-fluency-coach) | 4.6/5 | N/A | Digital Atomic |
| [Spellable App](https://marlvel.ai/apps/spellable-app) | 5.0/5 | N/A | Dulcie Crowther |

## Company Profile
- **Developer:** CMoney

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/%E5%96%AE%E5%AD%97%E7%9F%A5%E8%AD%98%E7%8E%8B/id6466239865?uo=4)
- **Sources:** App store metadata.

## Related Intel Reports
- [*The Federalist Papers - Study*](https://marlvel.ai/apps/the-federalist-papers-study) (Hector Minaya) · N/A Rating
- [*Gappy Learns Reading*](https://marlvel.ai/apps/gappy-learns-reading) (Little 10 Robot) · 3.1/5 Rating
- [*Better Spelling for Adults*](https://marlvel.ai/apps/better-spelling-for-adults) (Benjamin Kaiser) · N/A Rating
- [*Flowency: Verbal Fluency Coach*](https://marlvel.ai/apps/flowency-verbal-fluency-coach) (Digital Atomic) · 4.6/5 Rating
- [*Spellable App*](https://marlvel.ai/apps/spellable-app) (Dulcie Crowther) · 5.0/5 Rating
- [*読めないと恥ずかしい脳トレ漢字クイズ*](https://marlvel.ai/apps/jp-co-gakkonet-quizninjaadultkanjiyomi) (StudySwitch, Inc.) · 4.5/5 Rating
- [*書けないと恥ずかしい脳トレ漢字クイズ*](https://marlvel.ai/apps/jp-co-gakkonet-quizninjaadultkanjikaki) (StudySwitch, Inc.) · 4.7/5 Rating
- [*Kids Spelling School*](https://marlvel.ai/apps/kids-spelling-school) (siriwit nambutdee) · 1.0/5 Rating
- [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating
- [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating

## 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 3
- **Data Sources:** 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:** 87 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/cmoney-englishking)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.