Comparison

MasterElec vs Circuit Wiring Simulator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MasterElec

A voice-powered assistant for electricians that provides offline access to NEC references and professional calculators. Quickly get answers to code questions and perform calculations without needing an internet connection.

Highlights
  • Voice-first interface for queries
  • 100% offline functionality
  • NEC reference access
  • Professional electrical calculators
  • Bookmark and export calculations
  • Free daily voice queries
Features
Read full description

Stop pausing your workflow for manual code lookups. MasterElec is a voice-powered assistant built for electricians that works offline. Access NEC references and professional calculators entirely by voice—no signal required. Voice-First Interface: Ask "What's the ampacity for 3/0 copper?" and get instant answers. 100% Offline: Works in basements, job sites, anywhere—no internet needed. NEC Reference: Grounding, GFCI/AFCI requirements, ampacity tables, and more. Professional Calculators: Voltage Drop, Conduit Fill, Box Fill, and Grounding Sizing. Export Ready: Bookmark sections and export calculations as PDFs. Free users get 5 voice queries/day and basic calculators. Upgrade to Pro for unlimited access. Subscription information Subscription options include weekly and yearly plans and will be charged to your Apple ID account. • Payment will be charged at confirmation of purchase. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. • Renewal will be charged within 24 hours prior to the end of the current period. • You can manage or cancel your subscription in your App Store account settings. • Any unused portion of a free trial period, if offered, will be forfeited upon purchase. Terms of Use: https://www.twoscripts.com/terms-of-use/ Privacy Policy: https://www.twoscripts.com/privacy-policy/ MasterElec is an independent application and is not affiliated with or endorsed by the National Fire Protection Association (NFPA). NEC and National Electrical Code are trademarks of NFPA.

About

Circuit Wiring Simulator

Features
Read full description

Circuit Wiring Simulator is the ultimate wiring diagram maker and circuit simulation tool for electricians, apprentices, and students. Create, test, and verify wiring diagrams with real-timecircuitsimulationandbuilt-introubleshootingtools—perfectforhome electrical systems, certification prep, and creative electronics projects. Whether you're planning residential wiring, studying for exams, or exploring industrial wiring scenarios, this app gives you the tools to bring your circuits to life — anytime, anywhere, with no ads and offline access. 1.Real-Time Circuit Testing Test wiring logic instantly as you draw. Identify short circuits, overloads, and faults with visual feedback. Learn from mistakes in a safe, risk-free environment — perfect for hands-on learning. 2.Efficient Circuit Design Drag, zoom, lock canvas, and undo/redo with ease. Design complex logic circuits and professional schematic layouts faster and more accurately than ever. 3.Massive Component Library Access 200+ built-in electronic components including switches, relays, contactors, motors, instruments, and more — everything you need for diverse circuit design projects. 4.Community Plaza — Share & Inspire Upload your own designs, browse and cite works from fellow electricians and hobbyists, interact via comments and likes. Spark creativity and level up your skills. 5.Hands-On Practice Scenarios Practice with real-world residential wiring and industrial wiring scenarios. Verify your circuits, enhance practical skills, and build safety awareness — all before touching a real panel. 6.Professional Schematic Drawing Rich symbol library and intelligent drawing tools help you create clean, standardized electrical wiring diagrams with professional quality. Who This App Is For: Electricians: Plan, design, and verify wiring layouts. Troubleshoot circuits before installation. Apprentices:Learnelectricalprinciplesthroughhands-onsimulationandvisual feedback. Students: Prepare for certification with realistic wiring exercises and exam prep scenarios. Enthusiasts: Design and share creative electronics projects with a global community. Circuit Wiring Simulator is an educational design tool, not a gaming console or system emulator. It helps you learn, practice, and master electrical wiring in a safe, simulated environment.

Screenshots

MasterElec4 screens
Circuit Wiring Simulator4 screens

Verdict

The call

The clearest difference is update cadence: Circuit Wiring Simulator at every 2 weeks against MasterElec's every 2 months. Circuit Wiring Simulator also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MasterElec sells 2 in-app purchases, starting at $4.99 per 7 days and Circuit Wiring Simulator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MasterElec ships an update every 2 months, Circuit Wiring Simulator every 2 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
MasterElec versus Circuit Wiring Simulator: the parameters behind the verdict, then further details
ParameterMasterElecCircuit Wiring Simulator
PriceFreeFree
Rating4.6 (9 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size29 MB48 MB
Age rating4+17+
DeveloperTWOSCRIPTS LABS INC.沛洁 赖

In-app purchases

2 purchases

MasterElec

Subscriptions2
  • Weekly Susbcription3 Days trial$4.997 Days
  • Annual Subscription$39.991 Year
10 purchases

Circuit Wiring Simulator

One-time10
  • 30-day-discount0_9 VIP$4.49
  • 30-day VIP$4.99
  • 90-day-discount0_9 VIP$8.09
Show 7 more
  • 90-day VIP$8.99
  • One-year-discount0_9 VIP$14.49
  • One-year VIP$15.90
  • three-year-discount0_9 VIP$22.49
  • three-year VIP$24.99
  • Lifetime-discount0_9 VIP$31.49
  • Lifetime VIP$34.99

Questions

Is MasterElec free?
MasterElec is free to download, with in-app purchases available.
Is Circuit Wiring Simulator free?
Circuit Wiring Simulator is free to download, with in-app purchases available.
Do MasterElec or Circuit Wiring Simulator have ads?
Neither MasterElec nor Circuit Wiring Simulator shows ads.
Which is updated more often, MasterElec or Circuit Wiring Simulator?
MasterElec ships an update every 2 months, and Circuit Wiring Simulator every 2 weeks. Most recently, MasterElec was updated on November 9, 2026 and Circuit Wiring Simulator on October 31, 2026.

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