--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Horizontal Accelerometer" developer_entity: "Takao Ichimura" bundle_id: "com.tamagawa.haccelerometer" app_store_id: "6444095874" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-01-06" report_date: "2026-09-26" last_verified: "2026-09-26T00:00:00.000Z" report_version: "1.4.4" total_reviews: 0 confidence: "low" confidence_score: 0.2 data_age_days: 4 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "automobile", "drivers", "interested"] canonical_url: "https://marlvel.ai/apps/horizontal-accelerometer" license: "CC-BY-NC 4.0" content_version: "v2" --- # Horizontal Accelerometer Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free > **TL;DR:** Horizontal Accelerometer is a utilities app by Takao Ichimura, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Horizontal Accelerometer is a utilities app by Takao Ichimura. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Utilities | | **Developer** | Takao Ichimura | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 4d | ## Metadata & Market Performance - **Publisher:** Takao Ichimura - **Category:** Utilities - **Target Audience:** Automobile drivers interested in monitoring driving dynamics and engineering students studying equations of motion. - **Platforms:** iOS - **Version Reviewed:** 1.4.4 - **Report Date:** 2026-09-26 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6444095874 - **Bundle ID:** com.tamagawa.haccelerometer - **Data Window:** Analysis based on signals collected up to 2026-09-26 ## Executive Snapshot **What it is:** Horizontal Accelerometer is a free utility for measuring real-time horizontal acceleration and lateral G-force on iOS and iPadOS devices. **Why users hire it:** It removes the need for expensive, dedicated hardware when measuring acceleration for educational physics experiments or driving performance monitoring. ## App DNA (Features & Intent) - **[Differentiator] Color Zone Thresholds:** Visual and auditory alerts trigger when acceleration values exceed user-defined thresholds for Red and Yellow zones. * *User Intent:* Users want timely prompts to stay engaged without missing updates. - **[Differentiator] Harshness Cut Filter:** Toggles a software filter to ignore impact vibrations and noise during measurement. * *User Intent:* Users want to quickly find relevant content or features. - **[Standard] Calibration and Recall:** Saves and recalls specific device orientation and calibration settings for consistent measurement across different mounting surfaces. ## Market Position {#market-position} Horizontal Accelerometer occupies a niche, non-commercial position in the Utilities category. The lack of updates for 262 days signals a maintenance-only posture that prevents it from competing with active, sensor-integrated automotive diagnostics. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free utility with no visible in-app purchases or subscription tiers. ## SWOT Analysis {#swot} **Core Strengths:** - Customizable color-zone thresholds enable personalized driving-performance tracking **Growth Levers:** - Integration with vehicle-specific mounting hardware could establish a specialized distribution channel ## What's New - **Latest (v1.4.4, 8 months ago):** Maintenance update addressing minor bugs and performance optimizations. ## App Momentum (Zombie) {#momentum} - Quiet 8 months, maintenance only. - Last major release January 2026. > **Cadence:** 1 total versions · 0 majors in last 6 months · 262 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Horizontal Accelerometer is an utilities app that is completely free. > **Bottom Line:** Horizontal Accelerometer serves a narrow educational niche, but the lack of active development and monetization makes it a sunset candidate. Reallocating resources away from this static utility would allow focus on higher-yield projects. **Best for:** Automobile drivers interested in monitoring driving dynamics and engineering students studying equations of motion. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the app because the maintenance-only cadence and lack of monetization prevent competitive growth → reallocate resources ### Outlook: Declining The automotive utility market is consolidating around apps that provide automated, sensor-integrated data logging. Horizontal Accelerometer's manual, static design leaves it exposed to obsolescence as users migrate to tools that require less calibration and offer deeper vehicle-data integration. - 🔴 The 262-day update gap indicates the app is in maintenance mode, which prevents it from adopting modern sensor-fusion capabilities found in rival diagnostic tools. ## 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 | | :--- | :--- | :--- | :--- | | **Horizontal Accelerometer** (this app) | N/A/5 | N/A | Takao Ichimura | | [Sota Connect: Secure Network](https://marlvel.ai/apps/fi-catconnect-sota) | 4.8/5 | N/A | Cat Connect | | [V2Box - V2ray Client](https://marlvel.ai/apps/v2box-v2ray-client) | 4.6/5 | n/a | techlaim | | [App For Siri Commands Tips](https://marlvel.ai/apps/app-for-siri-commands-tips) | N/A/5 | N/A | Anh La Phan Son | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Bin Days - Bin Reminder](https://marlvel.ai/apps/bin-days-bin-reminder) | N/A/5 | N/A | Vicki Partridge | ## Company Profile - **Developer:** Takao Ichimura - **Website:** [https://dentaku-free.web.app/](https://dentaku-free.web.app/) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/horizontal-accelerometer/id6444095874?uo=4) - **Dev Site:** [Official Website](https://dentaku-free.web.app/) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*Sota Connect: Secure Network*](https://marlvel.ai/apps/fi-catconnect-sota) (Cat Connect) · 4.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.6/5 Rating - [*App For Siri Commands Tips*](https://marlvel.ai/apps/app-for-siri-commands-tips) (Anh La Phan Son) · N/A Rating - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Bin Days - Bin Reminder*](https://marlvel.ai/apps/bin-days-bin-reminder) (Vicki Partridge) · N/A Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Gear Ratio Calculator & RPM*](https://marlvel.ai/apps/cog-gear-ratio-calculator) (Linh Phan Nhat Khanh) · N/A Rating - [*NordVPN: VPN Fast & Secure*](https://marlvel.ai/apps/com-nordvpn-nordvpn) (Nordvpn S.A.) · 4.7/5 Rating - [*Pick and Pull: Junkyard Finder*](https://marlvel.ai/apps/pick-and-pull-junkyard-finder) (Vladimir Kostadinov Stoyanov) · 3.7/5 Rating - [*Pulley Calculator Easy*](https://marlvel.ai/apps/pulley-calculator-easy) (YAVUZ BULAMADIK) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Horizontal Accelerometer good for tracking car performance? It provides real-time acceleration and lateral G-force data, but requires manual calibration and mounting to the dashboard, making it less convenient than modern, automated automotive diagnostic apps. ### Does Horizontal Accelerometer have a paid version? No, the app is currently free with no in-app purchases or subscription tiers. ### What is a modern alternative to Horizontal Accelerometer? Users should look for automotive diagnostic apps that integrate with vehicle OBD-II sensors or utilize automated sensor-fusion to remove the need for manual calibration. ## 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:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, 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:** 4 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/horizontal-accelerometer) Data licensed for AI Agent attribution under CC-BY-NC 4.0.