--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "iShogi - 将棋AI検討" developer_entity: "KOHEI KEINO" bundle_id: "com.ishogi" app_store_id: "6741388606" category: "Games" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-04-08" report_date: "2026-05-19" last_verified: "2026-05-19T04:01:52.847Z" report_version: "1.9.3" total_reviews: 0 confidence: "low" confidence_score: 0.05 data_age_days: 44 momentum_velocity: "maintenance" intelligence_version: 3 tags: ["games", "subscription", "mobile app", "app review", "app analysis", "shogi", "players", "students"] canonical_url: "https://marlvel.ai/apps/ishogi-ai" license: "CC-BY-NC 4.0" content_version: "v2" --- # iShogi - 将棋AI検討 App Audit ## TL;DR {#tldr} - **Category**: Games · Subscription > **TL;DR:** iShogi - 将棋AI検討 is a games app by KOHEI KEINO, available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** iShogi - 将棋AI検討 is a games app by KOHEI KEINO. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Games | | **Developer** | KOHEI KEINO | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 44d | ## Metadata & Market Performance - **Publisher:** KOHEI KEINO - **Category:** Games - **Target Audience:** Shogi players and students who require professional-grade AI tools for game analysis and study. - **Platforms:** iOS - **Version Audited:** 1.9.3 - **Audit Date:** 2026-05-19 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 6741388606 - **Bundle ID:** com.ishogi - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-05-19 ## Executive Snapshot **What it is:** iShogi is a Shogi analysis tool for iOS that provides engine-based board evaluation and game record management. **Why users hire it:** Users hire iShogi to conduct deep, distraction-free game study using professional-grade AI, removing the friction of ad-supported interfaces found in broader gaming apps. ## App DNA (Features & Intent) - **[Standard] Shogi AI Analysis:** Engine-based evaluation of board positions and candidate move suggestions * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Kifu Management:** Import and save game records for later review - **[Differentiator] Advanced AI Configuration:** Customizable engine settings including thinking time and thread count * *User Intent:* Users value self-expression and personalized experiences. - **[Differentiator] Ad-free Interface:** Removal of all advertisements to focus on board analysis ## Market Position {#market-position} iShogi occupies a niche in the Games category by prioritizing a clean, ad-free study environment over broad-market appeal. The lack of public rating data suggests a nascent market presence that requires immediate user acquisition focus. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free version for basic analysis, Monthly subscription for advanced AI configuration - **Analysis:** Monetization is gated behind advanced engine performance settings, targeting power users who require deeper analytical control. ## SWOT Analysis {#swot} **Core Strengths:** - Ad-free interface removes friction from deep study sessions - Advanced engine configuration provides granular control for power users **Critical Frictions:** - Subscription-gated engine settings create a high barrier for casual users - No community features or social sharing tools **Growth Levers:** - Integration with professional Shogi tournament data for real-time analysis - Educational partnerships for student-focused study tools **Market Threats:** - Open-source Shogi engines offering similar features for free - Established competitors with larger user bases and social features ## Recent Changes (v2 → v3) {#recent-changes} The product strategy has shifted from internal feature development to addressing monetization and competitive threats from open-source alternatives. **Overall trend**: Stable **Compared at**: 2026-05-19 ### High-impact changes - **[Shifted] Conversion Strategy** (pricing) — PM action items shifted from cloud-save development to prioritizing a limited-time trial for advanced engine settings. ### Medium-impact changes - **[Shifted] Competitive Vulnerability** (positioning) — Executive summary now highlights the risk of the free-tier engine performance falling behind open-source alternatives. - **[Added] New SWOT Items** (swot) — Added 'Open-source Shogi engines' as a threat and 'Professional Shogi tournament data' as an opportunity. ## What's New - **Latest (v1.9.3, 1 months ago):** Fixed a crash occurring when loading a starting position with a single piece. ## App Momentum (Maintenance) {#momentum} - Released latest version April 2026. - Maintains focus on core analysis tools. > **Cadence:** 1 total versions · 0 majors in last 6 months · 41 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} iShogi - 将棋AI検討 is an established games app that is available. > **Bottom Line:** iShogi succeeds by providing a clean, focused environment for Shogi analysis, but the subscription-gated engine settings limit its reach among casual players, so the PM should prioritize a trial period to demonstrate value to the free-tier base. **Best for:** Shogi players and students who require professional-grade AI tools for game analysis and study. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] [HIGH IMPACT] Pivot the subscription model to include a limited-time trial for advanced settings because current gating prevents users from experiencing the value → increase conversion rate. — *The current subscription-gated engine settings create a high barrier for casual users who cannot test the value before purchasing.* _(trade-off: deprioritize Pause the development of new Kifu management features — trial conversion has a higher revenue impact.)_ - [ ] [MAINTAIN] [MEDIUM IMPACT] Maintain the ad-free interface because it is the primary differentiator against free, ad-heavy alternatives → defend user retention. — *The ad-free interface is the core differentiator that separates iShogi from generic, ad-supported Shogi apps.* _(trade-off: deprioritize Same-quarter capacity available — no major lever displaced.)_ ### Outlook: Stable The Shogi analysis market is consolidating around tools that offer both professional-grade engine depth and social study features. iShogi remains exposed to competitors that provide free, ad-supported access to similar engine power, so revenue growth hinges on proving the value of advanced settings through trial periods. - ⚪ The latest release focuses on stability, indicating the app is currently in a maintenance phase rather than aggressive expansion. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 4 analyzed | | Trend | Stable | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **iShogi - 将棋AI検討** (this app) | N/A/5 | N/A | KOHEI KEINO | | [Royal Match](https://marlvel.ai/apps/royal-match) | 4.7/5 | Mixed | Dream Games | | [Stumble Guys](https://marlvel.ai/apps/stumble-guys) | 4.5/5 | Mixed | Scopely, Inc. | | [Temple Run](https://marlvel.ai/apps/temple-run) | 4.3/5 | N/A | Imangi Studios, LLC | | [Partymasters - Fun Idle Game](https://marlvel.ai/apps/partymasters-fun-idle-game) | 4.5/5 | Excited | AI Games FZ | | [Hole.io](https://marlvel.ai/apps/hole-io) | 3.8/5 | Upset | Voodoo | ## Company Profile - **Developer:** KOHEI KEINO ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/ishogi-%E5%B0%86%E6%A3%8Bai%E6%A4%9C%E8%A8%8E/id6741388606?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*Royal Match*](https://marlvel.ai/apps/royal-match) (Dream Games) — 4.7/5 Rating | Mixed Sentiment - [*Stumble Guys*](https://marlvel.ai/apps/stumble-guys) (Scopely, Inc.) — 4.5/5 Rating | Mixed Sentiment - [*Temple Run*](https://marlvel.ai/apps/temple-run) (Imangi Studios, LLC) — 4.3/5 Rating | N/A Sentiment - [*Partymasters - Fun Idle Game*](https://marlvel.ai/apps/partymasters-fun-idle-game) (AI Games FZ) — 4.5/5 Rating | Positive Sentiment - [*Hole.io*](https://marlvel.ai/apps/hole-io) (Voodoo) — 3.8/5 Rating | Terrible Sentiment - [*Bejeweled Blitz*](https://marlvel.ai/apps/bejeweled-blitz) (PopCap) — 3.3/5 Rating | Mixed Sentiment - [*YouRiding - Surf and Bodyboard*](https://marlvel.ai/apps/youriding-surf-and-bodyboard) (BoardScore, Inc.) — 4.2/5 Rating | Mixed Sentiment - [*Brawl Stars*](https://marlvel.ai/apps/brawl-stars) (Supercell) — 4.5/5 Rating | Negative Sentiment - [*Archero*](https://marlvel.ai/apps/archero) (HABBY) — 4.5/5 Rating | Mixed Sentiment - [*Slide.io - Free Style Games*](https://marlvel.ai/apps/slide-io-free-style-games) (Akbari Bhaveshbhai) — 4.5/5 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:** 44 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/ishogi-ai) Data licensed for AI Agent attribution under CC-BY-NC 4.0.