--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "DC Circuit Builder" developer_entity: "Nerd Island Studios, LLC" bundle_id: "com.nerdislandstudios.dccircuitbuilder" app_store_id: "863128050" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2014-05-03" report_date: "2026-08-28" last_verified: "2026-08-28T00:00:00.000Z" report_version: "1.1" total_reviews: 26 overall_rating: 2.6 confidence: "low" confidence_score: 0.05 data_age_days: 34 momentum_velocity: "zombie" intelligence_version: 3 tags: ["education", "free", "mobile app", "app review", "app analysis", "school", "physics", "students"] canonical_url: "https://marlvel.ai/apps/dc-circuit-builder" license: "CC-BY-NC 4.0" content_version: "v2" --- # DC Circuit Builder Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 2.58 > **TL;DR:** DC Circuit Builder is a education app by Nerd Island Studios, LLC, rated 2.58/5 by 26 users, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** DC Circuit Builder is a education app by Nerd Island Studios, LLC. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 2.58/5 (26 reviews) | | **Category** | Education | | **Developer** | Nerd Island Studios, LLC | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.05/1.0) | | **Data Age** | 34d | ## Metadata & Market Performance - **Publisher:** Nerd Island Studios, LLC - **Category:** Education - **Target Audience:** High school physics students and teachers requiring a digital classroom tool for basic circuit analysis. - **Platforms:** iOS - **Version Reviewed:** 1.1 - **Report Date:** 2026-08-28 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.05/1.0) - **App Store ID (iOS):** 863128050 - **Bundle ID:** com.nerdislandstudios.dccircuitbuilder - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-08-28 ## Executive Snapshot **What it is:** DC Circuit Builder is an educational tool for iOS that allows students to design and test series, parallel, and compound circuits. **Why users hire it:** The tool replaces physical breadboards with a digital environment, removing the cost and setup friction of classroom hardware for basic physics experiments. ## App DNA (Features & Intent) - **[Standard] Circuit Simulation:** Build and test series, parallel, and compound circuits with real-time component interaction. - **[Differentiator] Visual Charge Flow:** Animated charge movement through circuit components to visualize current. - **[Differentiator] Virtual Instrumentation:** Voltmeters and ammeters that mimic real-world classroom equipment behavior. ## Market Position {#market-position} DC Circuit Builder operates as a legacy education tool with no active development for over 4,500 days. The lack of updates relative to modern, cross-platform physics simulators signals a declining competitive position in the classroom software market. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** The app is distributed as a free tool with no observable monetization or in-app purchase gates. ## SWOT Analysis {#swot} **Core Strengths:** - Visual charge flow animations reduce cognitive load for students **Growth Levers:** - Integration with modern learning management systems ## Recent Changes (v2 → v3) {#recent-changes} The competitive assessment of DC Circuit Builder has shifted to emphasize its lack of cloud-save functionality and its inability to compete with modern, cross-platform educational tools. The project remains in a terminal maintenance state with no functional changes since 2014. **Overall trend**: Declining **Compared at**: 2026-08-28 ### High-impact changes - **[Added] Cloud-save deficiency identified** (swot) ### Medium-impact changes - **[Shifted] Competitive threat framing** (positioning) - **[Added] Cloud-save FAQ** (features) ## App Momentum (Zombie) {#momentum} - No updates for 4,500 days. - Maintenance-only status since 2014. > **Cadence:** 1 total versions · 0 majors in last 6 months · 4500 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} DC Circuit Builder is an education app that is completely free. It holds a 2.58/5 rating from 26 reviews. > **Bottom Line:** DC Circuit Builder serves as a functional, albeit legacy, classroom aid that lacks the development cadence required to remain relevant. The current maintenance-only posture risks total obsolescence as hardware compatibility issues mount, signaling a need to sunset the project. **Best for:** High school physics students and teachers requiring a digital classroom tool for basic circuit analysis. ### PM Action Plan (Next Best Moves) - [ ] [SUNSET] Sunset the application because the 4,500-day update gap renders it a brand liability → preserve developer reputation ### Outlook: Declining The education software market is consolidating around cross-platform, cloud-integrated tools that offer seamless classroom collaboration. DC Circuit Builder's stagnant development cadence leaves it unable to compete, signaling a inevitable decline in user base as hardware compatibility erodes. - 🔴 The 4,500-day update gap indicates the app is in a terminal maintenance state, which will eventually lead to total failure on newer iOS versions. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 2.58/5 | | Total Reviews | 26 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **DC Circuit Builder** (this app) | 2.58/5 | N/A | Nerd Island Studios, LLC | | [AlgoApp - Flashcards](https://marlvel.ai/apps/algoapp-flashcards) | 4.5/5 | n/a | AlgoApp Inc | | [Elevate - Brain Training Games](https://marlvel.ai/apps/elevate-brain-training-games) | 4.7/5 | n/a | The Mind Company | | [Flashcards Deluxe](https://marlvel.ai/apps/flashcards-deluxe) | 4.5/5 | N/A | OrangeOrApple.com | | [Flash Cards Flashcards Maker](https://marlvel.ai/apps/flash-cards-flashcards-maker) | 4.0/5 | Mixed | Infinite Wave Media, LLC | | [Flashcards maker - AI generate](https://marlvel.ai/apps/flashcards-maker-ai-generate) | 4.1/5 | Mixed | Teleprompter LLC | ## Company Profile - **Developer:** Nerd Island Studios, LLC ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/dc-circuit-builder/id863128050?uo=4) - **Sources:** App store metadata. ## Related Intel Reports - [*AlgoApp - Flashcards*](https://marlvel.ai/apps/algoapp-flashcards) (AlgoApp Inc) · 4.5/5 Rating - [*Elevate - Brain Training Games*](https://marlvel.ai/apps/elevate-brain-training-games) (The Mind Company) · 4.7/5 Rating - [*Flashcards Deluxe*](https://marlvel.ai/apps/flashcards-deluxe) (OrangeOrApple.com) · 4.5/5 Rating - [*Flash Cards Flashcards Maker*](https://marlvel.ai/apps/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) · 4.0/5 Rating - [*Flashcards maker - AI generate*](https://marlvel.ai/apps/flashcards-maker-ai-generate) (Teleprompter LLC) · 4.1/5 Rating - [*Impulse - Brain Training*](https://marlvel.ai/apps/impulse-brain-training) (GMRD Apps Limited) · 4.6/5 Rating - [*Peak - Brain Training*](https://marlvel.ai/apps/peak-brain-training) (Synaptic Labs) · 4.7/5 Rating - [*자주 틀리는 우리말*](https://marlvel.ai/apps/app--424) (DaolSoft, Co., Ltd.) · N/A Rating - [*달공부 - 한 달 공부 다이어리 + 루틴/공부 타이머*](https://marlvel.ai/apps/azlabs-dalstudy) (SuWon Choi) · N/A Rating - [*타요콘 - 타요 아바타 놀이동화*](https://marlvel.ai/apps/com-kigle-project-tayocon) (KIGLE) · 3.1/5 Rating ## Frequently Asked Questions {#faq} ### Is DC Circuit Builder still being updated? No, the app has not received an update since May 2014, marking over 4,500 days of inactivity. ### Does DC Circuit Builder support cloud saving? No, the app does not feature cloud-save functionality, which limits its use for multi-session classroom projects. ### What are some alternatives to DC Circuit Builder? Users should consider modern, cross-platform physics simulators that offer active development, cloud-save features, and compatibility with current mobile operating systems. ## 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:** 0.05/1.0 (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:** 34 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/dc-circuit-builder) Data licensed for AI Agent attribution under CC-BY-NC 4.0.