--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Electronics Reference Toolkit" developer_entity: "Ha Do Thi Thu" bundle_id: "com.ha.circuit" app_store_id: "6757098692" category: "Utilities" primary_platform: "ios" primary_monetization: "Free" offline_capable: true market_region: "US" platforms: "iOS" app_last_updated: "2026-01-15" report_date: "2026-09-12" last_verified: "2026-09-12T00:00:00.000Z" report_version: "1.0.1" total_reviews: 12 overall_rating: 4.8 confidence: "low" confidence_score: 0.3 data_age_days: 18 momentum_velocity: "zombie" intelligence_version: 2 tags: ["utilities", "free", "mobile app", "app review", "app analysis", "students,", "hobbyists,", "engineers"] canonical_url: "https://marlvel.ai/apps/electronics-reference-toolkit" license: "CC-BY-NC 4.0" content_version: "v2" --- # Electronics Reference Toolkit Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Free - **Signal**: Rating 4.83 > **TL;DR:** Electronics Reference Toolkit is a utilities app by Ha Do Thi Thu, rated 4.83/5 by 12 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Electronics Reference Toolkit is a utilities app by Ha Do Thi Thu. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.83/5 (12 reviews) | | **Category** | Utilities | | **Developer** | Ha Do Thi Thu | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.3/1.0) | | **Data Age** | 18d | ## Metadata & Market Performance - **Publisher:** Ha Do Thi Thu - **Category:** Utilities - **Target Audience:** Students, hobbyists, and engineers requiring quick, portable reference tools for electronics projects. - **Platforms:** iOS - **Version Reviewed:** 1.0.1 - **Report Date:** 2026-09-12 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.3/1.0) - **App Store ID (iOS):** 6757098692 - **Bundle ID:** com.ha.circuit - **Data Window:** Analysis based on signals collected up to 2026-09-12 ## Executive Snapshot **What it is:** Electronics Reference Toolkit is a portable utility for electronics calculations and component decoding, designed for students and engineers on iOS. **Why users hire it:** The app removes the connectivity dependency required by many engineering tools, allowing for reliable use in field environments where internet access is unavailable. ## App DNA (Features & Intent) - **[Standard] Electronics Calculation Suite:** Calculates Ohm’s Law, LED resistor values, voltage dividers, and RC/RL time constants for circuit design. - **[Standard] Component Decoders:** Decodes resistor color bands and capacitor EIA codes for hardware identification. - **[Differentiator] Transistor Reference:** Searchable database of NPN, PNP, and MOSFET components with filtering. * *User Intent:* Users want to quickly find relevant content or features. - **[Differentiator] Offline Utility:** Full functionality available without internet connectivity, reducing dependency on external tools in field environments. * *User Intent:* Users want uninterrupted access without internet dependency. ## Market Position {#market-position} Electronics Reference Toolkit holds a 4.83 rating across 12 reviews, positioning it as a high-quality but low-visibility utility. The lack of monetization gates distinguishes it from ad-supported rivals, though the current review count limits its ability to climb the category charts. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is currently free to download with no visible in-app purchase or subscription gates, providing a low-friction entry point for users. ## SWOT Analysis {#swot} **Core Strengths:** - Offline-first architecture reduces dependency on external tools in field environments. - Specialized transistor reference database provides a differentiator against generic calculators. **Growth Levers:** - Capture market share from ad-heavy rivals by maintaining a clean, gate-free experience. ## What's New - **Latest (v1.0.1, 7 months ago):** Expanded engineering utility with four new tools: CMS Code Decoder, Resistor Power, Wire Voltage Drop, and RLC Analyzer. ## App Momentum (Zombie) {#momentum} - Expanded engineering suite with four tools. - Maintains offline-first utility focus. > **Cadence:** 1 total versions · 1 majors in last 6 months · 239 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Electronics Reference Toolkit is an utilities app that is completely free. It holds a 4.83/5 rating from 12 reviews. > **Bottom Line:** Electronics Reference Toolkit provides a reliable, offline-first engineering utility that currently lacks the social proof to scale. Implementing a targeted review-prompt mechanism would address the visibility gap, allowing the app to better compete against ad-heavy rivals. **Best for:** Students, hobbyists, and engineers requiring quick, portable reference tools for electronics projects. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Implement a review-prompt trigger after successful calculations because low review volume limits discovery → increase organic install velocity ### Outlook: Stable The engineering utility market is consolidating around tools that offer both speed and offline reliability. Electronics Reference Toolkit is well-positioned to capture users who prioritize a clean, ad-free experience, but it must increase its review count to survive the discovery funnel against larger, ad-funded competitors. - 🟢 The latest release added four engineering tools, signaling that the developer is actively expanding the utility set rather than entering maintenance mode. - ⚪ The current review volume remains low, which limits the app's ability to gain traction in the competitive Utilities category. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.83/5 | | Total Reviews | 12 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 4 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Electronics Reference Toolkit** (this app) | 4.83/5 | N/A | Ha Do Thi Thu | | [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 | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.5/5 | Mixed | Fuxin Technology | ## Company Profile - **Developer:** Ha Do Thi Thu - **Website:** [https://hosting-7ba9c.web.app](https://hosting-7ba9c.web.app) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/electronics-reference-toolkit/id6757098692?uo=4) - **Dev Site:** [Official Website](https://hosting-7ba9c.web.app) - **Sources:** Developer website content, About us / company information, 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 - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.5/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*VPN 365-Master WIFI Security*](https://marlvel.ai/apps/vpn-365-master-wifi-security) (vpn fast) · 4.6/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating ## Frequently Asked Questions {#faq} ### Is Electronics Reference Toolkit free to use? Yes, the app is currently free to download and use, with no visible in-app purchases or subscription gates. ### Does Electronics Reference Toolkit require an internet connection? No, the app is designed for offline use, allowing you to access calculations and component decoders without internet connectivity. ### What tools are included in the latest update? The latest update added a CMS Code Decoder, Resistor Power calculator, Wire Voltage Drop calculator, and an RLC Analyzer. ## 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:** 0.3/1.0 (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:** 18 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/electronics-reference-toolkit) Data licensed for AI Agent attribution under CC-BY-NC 4.0.