--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Circuitry - 3D Circuit Builder" developer_entity: "Raffael Kaehn" bundle_id: "com.raffaelkaehn.circuitry" app_store_id: "1476733898" category: "Education" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2023-11-13" report_date: "2026-10-13" last_verified: "2026-10-13T00:00:00.000Z" report_version: "1.2.5" total_reviews: 154 overall_rating: 3.9 sentiment: "Frustrated" sentiment_score: 35 confidence: "low" confidence_score: 0.35 top_praise_theme: "The core electrical simulation loop provides an engaging and educational experience for engineering students" top_complaint_theme: "Frequent application crashes on launch prevent users from accessing the circuit simulation interface" review_sample_size: 19 total_review_count: 19 analyzed_review_count: 19 data_age_days: 32 momentum_velocity: "zombie" intelligence_version: 4 nemesis: "EveryCircuit" competitor_count: 11 tags: ["education", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "students", "hobbyists", "interested"] canonical_url: "https://marlvel.ai/apps/circuitry-3d-circuit-builder" license: "CC-BY-NC 4.0" content_version: "v2" --- # Circuitry - 3D Circuit Builder Intelligence Report ## TL;DR {#tldr} - **Category**: Education · Free - **Signal**: Rating 3.89 · Sentiment Frustrated - **Recent focus**: Frequent application crashes on launch prevent users from accessing the circuit simulation interface (top complaint) · The core electrical simulation loop provides an engaging and educational experience for engineering students (top praise) > **TL;DR:** Circuitry - 3D Circuit Builder is a education app by Raffael Kaehn, rated 3.89/5 by 154 users, with Frustrated user sentiment (35/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Circuitry - 3D Circuit Builder faces Frustrated user sentiment (3.89/5 from 154 reviews), with users reporting frequent application crashes on launch prevent users from accessing the circuit simulation interface as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 3.89/5 (154 reviews) | | **User Mood** | Frustrated | | **Category** | Education | | **Developer** | Raffael Kaehn | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.35/1.0) | | **Data Age** | 32d | ## Metadata & Market Performance - **Publisher:** Raffael Kaehn - **Category:** Education - **Target Audience:** Students and hobbyists interested in electronics simulation and circuit design. - **Platforms:** iOS - **Version Reviewed:** 1.2.5 - **Report Date:** 2026-10-13 - **Signal Count:** 19 reviews analyzed - **Confidence:** Low (0.35/1.0) - **App Store ID (iOS):** 1476733898 - **Bundle ID:** com.raffaelkaehn.circuitry - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-10-13 ## Executive Snapshot **What it is:** Circuitry is a 3D circuit simulation tool for students and hobbyists on iOS. **Why users hire it:** It removes the computational friction of simulating large circuits via a GPU-accelerated engine, though the lack of documentation creates a steep learning curve. ## App DNA (Features & Intent) - **[Differentiator] 3D Circuit Builder:** Visual interface for constructing electronic circuits in a three-dimensional workspace. - **[Differentiator] GPU-Accelerated Analysis:** Network analysis algorithm for calculating voltages and currents using hardware acceleration. - **[Standard] Document-Based Architecture:** Saves circuits as individual files for cross-device access. * *User Intent:* Users expect seamless access across multiple devices. ## Market Position {#market-position} Circuitry occupies a niche in the Education category, but its 3.89-star rating across 154 total ratings is hindered by a 30-month update silence [1, 2]. The lack of monetization or advanced features suggests a hobbyist-focused positioning that currently struggles to retain users against more stable, community-backed rivals [1, 2]. ## Monetization Strategy - **Model:** Free - **Tiers:** Free - **Analysis:** Circuitry is distributed as a free utility with no visible in-app purchases or subscription gates. ## 🔴 User Sentiment (Low Confidence: 19 of 19 reviews analyzed) {#user-sentiment} - **Overall Rating:** 3.89/5 - **Platform Split:** iOS 3.9/5 (154 ratings) - **Overall Sentiment:** Frustrated ### Top Praises - **The core electrical simulation loop provides an engaging and educational experience for engineering students** ### Top Complaints (Impact Areas) - **Frequent application crashes on launch prevent users from accessing the circuit simulation interface** ## SWOT Analysis {#swot} **Core Strengths:** - GPU-accelerated engine enables fast simulations - 3D interface provides immersive spatial understanding **Growth Levers:** - Adding component labels improves learning curve - Implementing tutorials reduces new-user churn ## Recent Changes (v3 → v4) {#recent-changes} Technical instability and a 30-month development silence have forced a pivot from feature expansion to critical bug remediation. The focus has shifted from competing with EveryCircuit's community library to resolving launch crashes that prevent basic app access. **Overall trend**: Declining **Compared at**: 2026-10-13 ### High-impact changes - **[Declined] Sentiment Score Drop** (sentiment) - **[Shifted] Strategic Focus Pivot** (positioning) ### Medium-impact changes - **[Shifted] Weakness Reclassification** (swot) - **[Added] New Competitive Threat** (swot) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Circuitry - 3D Circuit Builder vs EveryCircuit - **[EveryCircuit](https://marlvel.ai/apps/everycircuit)** by MuseMaze: EveryCircuit is the primary market leader in interactive circuit simulation, directly challenging Circuitry's value proposition of fast, visual electronic analysis. - **Key differences:** - Massive cloud-based community library allows users to share and import complex circuit designs instantly. - Dynamic visualization engine provides real-time animation of current flow, which is more intuitive than static analysis. - Decade-long market presence has established a deep user base and high brand authority in education. ### Contenders (Strong Challengers) - **[Physics Lab AR](https://marlvel.ai/apps/physics-lab-ar)** by Turtle Sim LLC: Competes for the same STEM-focused audience by offering 3D circuit building tools with an emphasis on augmented reality visualization. - Augmented reality integration allows students to project circuits into their physical environment for better engagement. - Broad physics curriculum coverage beyond electronics provides a more comprehensive educational value proposition for schools. - **[Optics](https://marlvel.ai/apps/optics)** by 继岭 陈: Targets the same academic physics niche, focusing on specialized simulation engines for educational assessment. - Integrated randomized MCQ quizzes provide immediate assessment feedback, which is currently missing from this app. - Offline-first architecture ensures consistent performance for students in regions with limited or unstable internet connectivity. - **[EOM Sim](https://marlvel.ai/apps/edu-westernu-simeye)** by Western University of Health Sciences: Shares the '3D simulation' core technology, competing for the attention of students who prefer interactive, touch-based learning models. - Highly specialized touch-based tracking provides a tactile learning experience that is superior for complex biological simulations. - Academic-backed development ensures high-fidelity accuracy for medical training, establishing strong credibility in the professional space. - **[The Human Body by Tinybop](https://marlvel.ai/apps/com-tinybop-humanbody)** by Tinybop Inc.: Competes for the same educational market share by utilizing high-quality 3D interactive models to explain complex systems. - Multi-language support and localized content make it significantly more accessible for international educational markets. - High-production-value interactive models create a premium, polished user experience that feels more like a game. ### Peers (What They Do Better) - **[Sketchy Learning](https://marlvel.ai/apps/sketchy-learning)** by Sketchy Group, LLC: Operates in the same educational technology space, focusing on visual learning methodologies to improve student retention. - Visual-first lesson library uses mnemonic techniques to help students memorize complex information more effectively. - Integrated QBank provides a comprehensive testing environment that keeps users within the app for longer sessions. - **[Grade 11 Physical Science](https://marlvel.ai/apps/za-co-jsdtsolutions-grade11physicalsciencemobileapplication)** by JSDT SOLUTIONS: Targets the exact same high school physics curriculum, serving as a direct alternative for exam preparation. - Comprehensive exam archive provides students with past papers, which is a critical utility for academic success. - Direct access to tutoring services bridges the gap between digital simulation and personalized human instruction. - **[Grade 10 Life Sciences](https://marlvel.ai/apps/com-jsdtsolutions-user-grade10lifesciencesmobileapplication)** by JSDT SOLUTIONS: Provides similar academic support services, competing for the same student demographic seeking curriculum-aligned study tools. - Structured practice problems mapped to specific grade-level curricula ensure high relevance for classroom-based learning. - Tutoring service integration offers a clear path to monetization and long-term user retention through human support. - **[Grade 12 Life Sciences](https://marlvel.ai/apps/com-phonegap-lifesciences_g12_by_tshepo)** by JSDT SOLUTIONS: Competes for the same student segment by offering a repository of academic resources and exam-focused content. - Post-school guidance features provide long-term value that encourages users to keep the app installed post-graduation. - Centralized exam paper repository acts as a high-utility utility that drives daily active usage during exam seasons. ### New Kids on the Block (What's Innovative) - **[GeoForge Academy](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy)** by ZACHARY MASON KELLER: A new entrant in the education category that utilizes gamification to drive engagement with academic content. - Interactive mini-games turn passive study sessions into active, rewarding experiences that improve user engagement metrics. - **[ChemCalc - Mole Calculator](https://marlvel.ai/apps/chemcalc-mole-calculator)** by Paul Leadbeater: A specialized educational tool that focuses on solving specific physics and chemistry problems, similar to this app's circuit analysis. - Interactive formula triangles provide a unique, visual way for students to manipulate equations and solve complex problems. ## What's New - **Latest (v1.2.5, 2 years ago):** General bug fixes and performance improvements. ## App Momentum (Zombie) {#momentum} - Dormant development for 30 months. - No major releases in 3 years. > **Cadence:** 1 total versions · 0 majors in last 6 months · 924 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Circuitry - 3D Circuit Builder is an education app that is completely free. With a 3.89/5 rating from 154 reviews, it faces significant user friction. > **Bottom Line:** Circuitry's GPU-accelerated engine provides a performance advantage, but the 30-month development silence and launch crashes prevent it from competing with EveryCircuit's stability and community-driven library [1, 2]. **Best for:** Students and hobbyists interested in electronics simulation and circuit design. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Audit launch sequence because crashes are the top-reported complaint → stabilize user base ### Feature Gaps vs Competitors - Community-driven circuit library (available in EveryCircuit but missing here) ### Outlook: Declining The educational simulation market is consolidating around tools that offer community sharing and high stability, leaving Circuitry exposed. Without a return to active development to address launch crashes, the app will continue to lose relevance to rivals like EveryCircuit that provide a more reliable and social experience [1, 2]. - 🔴 The 30-month update gap suggests the app is in maintenance mode, which erodes user trust as technical issues remain unresolved. - 🔴 Launch crashes prevent users from accessing the simulation, leading to negative sentiment and high churn risk among engineering students. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 3.89/5 | | Total Reviews | 154 | | Sentiment | Frustrated (35/100) | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Circuitry - 3D Circuit Builder** (this app) | 3.89/5 | Frustrated | Raffael Kaehn | | [Grade 12 Life Sciences](https://marlvel.ai/apps/com-phonegap-lifesciences_g12_by_tshepo) | 4.6/5 | N/A | JSDT SOLUTIONS | | [GeoForge Academy](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy) | 5.0/5 | N/A | ZACHARY MASON KELLER | | [Grade 10 Life Sciences](https://marlvel.ai/apps/com-jsdtsolutions-user-grade10lifesciencesmobileapplication) | 4.5/5 | N/A | JSDT SOLUTIONS | | [ChemCalc - Mole Calculator](https://marlvel.ai/apps/chemcalc-mole-calculator) | N/A/5 | Thrilled | Paul Leadbeater | | [EveryCircuit](https://marlvel.ai/apps/everycircuit) | 4.3/5 | Mixed | MuseMaze | ## Company Profile - **Developer:** Raffael Kaehn ## Data Sources & Links - **App Store ID:** 1476733898 - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*Grade 12 Life Sciences*](https://marlvel.ai/apps/com-phonegap-lifesciences_g12_by_tshepo) (JSDT SOLUTIONS) · 4.6/5 Rating - [*GeoForge Academy*](https://marlvel.ai/apps/com-galanisgalactus-geoforgeacademy) (ZACHARY MASON KELLER) · 5.0/5 Rating - [*Grade 10 Life Sciences*](https://marlvel.ai/apps/com-jsdtsolutions-user-grade10lifesciencesmobileapplication) (JSDT SOLUTIONS) · 4.5/5 Rating - [*ChemCalc - Mole Calculator*](https://marlvel.ai/apps/chemcalc-mole-calculator) (Paul Leadbeater) · N/A Rating | Excellent Sentiment - [*EveryCircuit*](https://marlvel.ai/apps/everycircuit) (MuseMaze) · 4.3/5 Rating - [*Optics*](https://marlvel.ai/apps/optics) (继岭 陈) · 3.2/5 Rating - [*Physics Lab AR*](https://marlvel.ai/apps/physics-lab-ar) (Turtle Sim LLC) · 4.7/5 Rating - [*Sketchy Learning*](https://marlvel.ai/apps/sketchy-learning) (Sketchy Group, LLC) · 5.0/5 Rating - [*Grade 11 Physical Science*](https://marlvel.ai/apps/za-co-jsdtsolutions-grade11physicalsciencemobileapplication) (JSDT SOLUTIONS) · 4.5/5 Rating - [*EOM Sim*](https://marlvel.ai/apps/edu-westernu-simeye) (Western University of Health Sciences) · 5.0/5 Rating ## Frequently Asked Questions {#faq} ### Is Circuitry suitable for professional engineering work? No, Circuitry is designed as an educational tool for students and hobbyists. Users report it lacks advanced features like transient analysis and oscilloscopes required for professional-grade circuit design. ### How does Circuitry compare to EveryCircuit? EveryCircuit is a market leader with a massive community library and dynamic current visualization, whereas Circuitry focuses on 3D building and GPU-accelerated speed but lacks the community and stability of its rival. ### Does Circuitry have intrusive ads or paid gates? Circuitry is currently distributed as a free utility with no visible in-app purchases or subscription gates. ### What are some free alternatives to Circuitry? Users interested in circuit simulation should consider EveryCircuit for its community library or Physics Lab AR for its augmented reality features, both of which compete for the same STEM-focused audience. ## 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:** 0.35/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 19 - **Data Sources:** user reviews, 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:** 32 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/circuitry-3d-circuit-builder) Data licensed for AI Agent attribution under CC-BY-NC 4.0.