--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "四字道場 - 毎日の四字熟語パズル" developer_entity: "1UP PixelWorks" bundle_id: "com.uppixelworks.yojidojo" category: "Educational" primary_platform: "android" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "Android" app_last_updated: "2026-04-03" report_date: "2026-05-20" last_verified: "2026-05-20T14:29:31.710Z" report_version: "1.1.0" total_reviews: 0 confidence: "low" confidence_score: 0.05 data_age_days: 43 intelligence_version: 2 tags: ["educational", "free", "mobile app", "app review", "app analysis", "individuals", "looking", "improve"] canonical_url: "https://marlvel.ai/apps/com-uppixelworks-yojidojo" license: "CC-BY-NC 4.0" content_version: "v2" --- # 四字道場 - 毎日の四字熟語パズル App Audit ## TL;DR {#tldr} - **Category**: Educational · Free > **TL;DR:** 四字道場 - 毎日の四字熟語パズル is a educational app by 1UP PixelWorks, available on Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** 四字道場 - 毎日の四字熟語パズル is a educational app by 1UP PixelWorks. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Educational | | **Developer** | 1UP PixelWorks | | **Pricing** | Free | | **Platforms** | Android | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 43d | ## Metadata & Market Performance - **Publisher:** 1UP PixelWorks - **Category:** Educational - **Target Audience:** Individuals looking to improve their Japanese vocabulary and engage in daily cognitive exercises through traditional idiom puzzles. - **Platforms:** Android - **Version Audited:** 1.1.0 - **Audit Date:** 2026-05-20 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **Google Play ID:** com.uppixelworks.yojidojo - **Data Window:** Analysis based on signals collected up to 2026-05-20 - **Short Description:** A Japanese puzzle game where you have to guess one four-character idiom every day. You have six chances to find the correct answer! ## Executive Snapshot 四字道場 is a daily Japanese puzzle game that challenges users to guess four-character idioms using a Wordle-style mechanic. It combines vocabulary building with educational content, offering detailed explanations and an encyclopedia for tracking progress. ## App DNA (Features & Intent) - **[Standard] Daily Puzzle System:** Provides a new four-character idiom challenge every midnight with six attempts to guess the correct characters. * *User Intent:* Users are motivated by consistent progression and daily incentives. - **[Standard] Hint and Explanation Engine:** Offers hints regarding reading, meaning, and the first character, alongside detailed explanations to support learning. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Progress Tracking:** Includes a statistics dashboard and an encyclopedia function to review previously completed idioms. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Curated Difficulty Levels:** Features a library of 300 idioms categorized into beginner, intermediate, and advanced levels. ## Monetization Strategy - **Model:** Free ## The "So What?" (Strategic Takeaway) {#so-what} 四字道場 - 毎日の四字熟語パズル is an established educational app that is completely free. > **Bottom Line:** This app gamifies the study of traditional Japanese four-character idioms through a structured, daily puzzle format. **Best for:** Individuals looking to improve their Japanese vocabulary and engage in daily cognitive exercises through traditional idiom puzzles. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | Android | | Key Features | 4 analyzed | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **四字道場 - 毎日の四字熟語パズル** (this app) | N/A/5 | N/A | 1UP PixelWorks | | [Baby Shark Dentist Play: Game](https://marlvel.ai/apps/kr-co-smartstudy-bbsdentistgame_android_googlemarket) | 3.5/5 | N/A | The Pinkfong Company | | [Pinkfong Tracing World : ABC](https://marlvel.ai/apps/kr-co-smartstudy-tracingworld_android_googlemarket) | 4.2/5 | N/A | The Pinkfong Company | | [Bebefinn Play Phone: Kids Game](https://marlvel.ai/apps/kr-co-smartstudy-bebefinnphone_android_googlemarket) | 3.6/5 | N/A | The Pinkfong Company | | [Bebefinn Birthday Party: Game](https://marlvel.ai/apps/kr-co-smartstudy-bebefinnparty_android_googlemarket) | 3.6/5 | N/A | The Pinkfong Company | | [Gabbys Dollhouse: Games & Cats](https://marlvel.ai/apps/gabbys-dollhouse-games-cats) | 4.3/5 | N/A | Play Piknik | ## Company Profile - **Developer:** 1UP PixelWorks - **Website:** [https://yojidojo-38483.web.app](https://yojidojo-38483.web.app) ## Data Sources & Links - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.uppixelworks.yojidojo) - **Dev Site:** [Official Website](https://yojidojo-38483.web.app) - **Sources:** App store metadata. ## Related Intel Reports - [*Baby Shark Dentist Play: Game*](https://marlvel.ai/apps/kr-co-smartstudy-bbsdentistgame_android_googlemarket) (The Pinkfong Company) — 3.5/5 Rating | N/A Sentiment - [*Pinkfong Tracing World : ABC*](https://marlvel.ai/apps/kr-co-smartstudy-tracingworld_android_googlemarket) (The Pinkfong Company) — 4.2/5 Rating | N/A Sentiment - [*Bebefinn Play Phone: Kids Game*](https://marlvel.ai/apps/kr-co-smartstudy-bebefinnphone_android_googlemarket) (The Pinkfong Company) — 3.6/5 Rating | N/A Sentiment - [*Bebefinn Birthday Party: Game*](https://marlvel.ai/apps/kr-co-smartstudy-bebefinnparty_android_googlemarket) (The Pinkfong Company) — 3.6/5 Rating | N/A Sentiment - [*Gabbys Dollhouse: Games & Cats*](https://marlvel.ai/apps/gabbys-dollhouse-games-cats) (Play Piknik) — 4.3/5 Rating | N/A Sentiment - [*Mecha Dragon*](https://marlvel.ai/apps/mecha-dragon) (Clementoni S.p.A.) — 3.1/5 Rating | N/A Sentiment - [*Deepcover*](https://marlvel.ai/apps/deepcover) (Whitethorn Games) — 3.6/5 Rating | N/A Sentiment - [*Masha and the Bear Mini Games*](https://marlvel.ai/apps/masha-and-the-bear-mini-games) (DTC Lab) — 4.3/5 Rating | N/A Sentiment - [*Muslim Kids: Learn & Fun*](https://marlvel.ai/apps/muslim-kids-learn-fun) (Saad Abdullah / Islam World) — N/A Rating | N/A Sentiment - [*Fun Kids Planes 2*](https://marlvel.ai/apps/fun-kids-planes-2) (Raz Games) — 3.9/5 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:** 0.05/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **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:** 43 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/com-uppixelworks-yojidojo) Data licensed for AI Agent attribution under CC-BY-NC 4.0.