--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "戦国武将クイズ" developer_entity: "StudySwitch, Inc." bundle_id: "jp.co.gakko-net.Hanpukun-Drill-SengokuBusyo-Free" app_store_id: "543768986" google_play_id: "jp.co.gakkonet.quizbasicsengokubusyo" category: "Games" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-02-25" report_date: "2026-05-24" last_verified: "2026-05-24T13:39:54.428Z" report_version: "8.22.0" total_reviews: 3 overall_rating: 4.33 confidence: "low" confidence_score: 0.3 data_age_days: 22 momentum_velocity: "maintenance" intelligence_version: 6 competitor_count: 5 tags: ["games", "free", "mobile app", "app review", "app analysis", "students", "history", "enthusiasts"] canonical_url: "https://marlvel.ai/intel-report/games/jp-co-gakko-net-hanpukun-drill-sengokubusyo-free" license: "CC-BY-NC 4.0" content_version: "v2" --- # 戦国武将クイズ App Audit ## TL;DR {#tldr} - **Category**: Games · Free - **Signal**: Rating 4.33 > **TL;DR:** 戦国武将クイズ is a games app by StudySwitch, Inc., rated 4.33/5 by 3 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** 戦国武将クイズ is a games app by StudySwitch, Inc.. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.33/5 (3 reviews) | | **Category** | Games | | **Developer** | StudySwitch, Inc. | | **Pricing** | Free | | **Platforms** | iOS & Android | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** StudySwitch, Inc. - **Category:** Games - **Target Audience:** Students and history enthusiasts interested in Sengoku-period Japan, including users of GIGA school-provided devices. - **Platforms:** iOS & Android - **Version Audited:** 8.22.0 - **Audit Date:** 2026-05-24 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 543768986 - **Bundle ID:** jp.co.gakko-net.Hanpukun-Drill-SengokuBusyo-Free - **Google Play ID:** jp.co.gakkonet.quizbasicsengokubusyo - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-05-24 - **Short Description:** Sengoku recording warlords, battle, castle, a history quiz about the old country. Aim for all the questions domination! ## Executive Snapshot **What it is:** 戦国武将クイズ is a free history-themed trivia app for iOS and Android, focusing on Sengoku-period warlords, battles, and castles. **Why users hire it:** Users hire this app for low-stakes historical knowledge testing, but the lack of social or progression mechanics means it fails to retain users beyond initial curiosity. ## App DNA (Features & Intent) - **[Standard] Dual-Mode Quiz System:** Offers 'Easy' mode for knowledge acquisition and 'Difficult' mode for proficiency testing. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Historical Content Library:** Covers Sengoku warlords, battles, castles, and old country names. - **[Standard] Ad-Supported Free Access:** Provides full access to all problems and functions without a paywall. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} The app maintains a static presence in the Games category with minimal review volume, signaling low organic discovery compared to geography-focused rivals. ## Monetization Strategy - **Model:** Free - **Tiers:** Fully free access to all content and features - **Analysis:** Ad-supported model providing full feature access at zero cost to the user. ## SWOT Analysis {#swot} **Core Strengths:** - Zero-cost access to all content functions as a low-friction entry point for school-aged users. **Critical Frictions:** - Absence of cloud-save functionality creates a high churn risk for users switching devices. - Lack of social features limits organic virality. **Growth Levers:** - Integration of a leaderboard or achievement system could convert casual learners into daily active users. **Market Threats:** - Hyper-localized geography trivia apps like Sweden Map are capturing the same niche-education segment with more personalized difficulty curves. ## Recent Changes (v5 → v6) {#recent-changes} The app's competitive strategy moved from content-focused maintenance to prioritizing retention-driving mechanics like cloud-save and achievement systems. **Overall trend**: Stable **Compared at**: 2026-05-24 ### High-impact changes - **[Added] Cloud-save functionality** (swot) — Added absence of cloud-save as a weakness, citing high churn risk for users switching devices. ### Medium-impact changes - **[Added] Achievement system gap** (features) — Added achievement systems to the feature gap list, noting their absence compared to competitors like World Quiz. - **[Added] Achievement system opportunity** (swot) — Added achievement systems as an opportunity to convert casual learners into daily active users. ## What's New - **Latest (v1.7.1, 13 years ago):** Fixed a bug preventing app launch on iOS 5. ## App Momentum (Maintenance) {#momentum} - No notable feature updates recently. - Maintains static, free-access content model. > **Cadence:** 5 total versions · 1 majors in last 6 months · 87 days since last update · 184 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} 戦国武将クイズ is an established games app that is completely free. With a 4.33/5 rating from 3 reviews, it shows polarized user reception. > **Bottom Line:** The app provides a solid, free history-drill experience but lacks the retention loops required to compete with gamified trivia rivals, so the PM should prioritize cross-device progress sync to prevent churn. **Best for:** Students and history enthusiasts interested in Sengoku-period Japan, including users of GIGA school-provided devices. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Ship cloud-save functionality because user retention is hampered by device-switching friction → increase long-term user base. — *The lack of progress persistence is a standard gap compared to modern trivia apps.* _(trade-off: deprioritize Pause the content-library expansion sprint — progress persistence is a higher-impact retention lever.)_ - [ ] [PIVOT] [MEDIUM IMPACT] Add a simple achievement badge system because current engagement lacks a daily-habit trigger → increase daily active users. — *Competitors like World Quiz use achievement systems to drive long-term retention.* _(trade-off: deprioritize Deprioritize the UI refresh of the quiz menu — engagement mechanics are more critical for retention.)_ ### Feature Gaps vs Competitors - Achievement systems (available in World Quiz but absent here) - Hint systems (available in Flags of the World but absent here) - Multi-language support (available in Animal Kingdom but absent here) ### Outlook: Stable The niche education-trivia market is consolidating around apps that offer high-frequency engagement through social and achievement-based loops. Without a shift toward these retention mechanics, the app will likely remain a low-velocity utility rather than a growing platform. - ⚪ The app maintains a consistent, free-access model without significant feature updates, signaling a maintenance-mode posture in a competitive trivia market. - 🔴 The absence of social or progression features leaves the app vulnerable to rivals that leverage achievement systems to drive daily habits. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.33/5 | | Total Reviews | 3 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **戦国武将クイズ** (this app) | 4.33/5 | N/A | StudySwitch, Inc. | | [World Quiz: Learn Geography](https://marlvel.ai/intel-report/games/com-majeski-worldquizfree) | 4.8/5 | Mixed | Michal Majewski | | [Flags of the World • Quiz](https://marlvel.ai/intel-report/games/com-mraber-worldflags) | 3.6/5 | N/A | Massimiliano Raber | | [Animal Kingdom - Quiz Game](https://marlvel.ai/intel-report/games/animal-kingdom-quiz-game) | 4.7/5 | N/A | Martin Tomas | | [Sweden Map - Geography Quiz](https://marlvel.ai/intel-report/trivia/sweden-map-geography-quiz) | N/A/5 | N/A | Eman Logic | | [UK Map: Geography Quiz](https://marlvel.ai/intel-report/trivia/uk-map-geography-quiz) | N/A/5 | N/A | Eman Logic | ## 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/%E6%88%A6%E5%9B%BD%E6%AD%A6%E5%B0%86%E3%82%AF%E3%82%A4%E3%82%BA/id543768986?uo=4) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=jp.co.gakkonet.quizbasicsengokubusyo&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. ## Related Intel Reports - [*World Quiz: Learn Geography*](https://marlvel.ai/intel-report/games/com-majeski-worldquizfree) (Michal Majewski) — 4.8/5 Rating | Mixed Sentiment - [*Flags of the World • Quiz*](https://marlvel.ai/intel-report/games/com-mraber-worldflags) (Massimiliano Raber) — 3.6/5 Rating | N/A Sentiment - [*Animal Kingdom - Quiz Game*](https://marlvel.ai/intel-report/games/animal-kingdom-quiz-game) (Martin Tomas) — 4.7/5 Rating | N/A Sentiment - [*Sweden Map - Geography Quiz*](https://marlvel.ai/intel-report/trivia/sweden-map-geography-quiz) (Eman Logic) — N/A Rating | N/A Sentiment - [*UK Map: Geography Quiz*](https://marlvel.ai/intel-report/trivia/uk-map-geography-quiz) (Eman Logic) — N/A Rating | N/A Sentiment - [*Royal Match*](https://marlvel.ai/intel-report/games/royal-match) (Dream Games) — 4.7/5 Rating | Negative Sentiment - [*Stumble Guys*](https://marlvel.ai/intel-report/games/stumble-guys) (Scopely, Inc.) — 4.5/5 Rating | Positive Sentiment - [*Bejeweled Blitz*](https://marlvel.ai/intel-report/games/bejeweled-blitz) (PopCap) — 3.3/5 Rating | Negative Sentiment - [*Archero*](https://marlvel.ai/intel-report/games/archero) (HABBY) — 4.5/5 Rating | N/A Sentiment - [*YouRiding - Surf and Bodyboard*](https://marlvel.ai/intel-report/games/youriding-surf-and-bodyboard) (BoardScore, Inc.) — 4.2/5 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:** 0.3/1.0 (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:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/games/jp-co-gakko-net-hanpukun-drill-sengokubusyo-free) Data licensed for AI Agent attribution under CC-BY-NC 4.0.