# MasterElec vs Circuit Wiring Simulator

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.

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.

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.

## The numbers

| Metric | MasterElec | Circuit Wiring Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (9 ratings)](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 29 MB | 48 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [TWOSCRIPTS LABS INC.](https://appshunter.io/developer/1861222980) | [沛洁 赖](https://appshunter.io/developer/1895142467) |

## What reviewers say

### MasterElec

[App page](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Susbcription | $4.99 | per 7 days |
| Annual Subscription | $39.99 | per year |


### Circuit Wiring Simulator

[App page](https://appshunter.io/ios/app/circuit-wiring-simulator/id6763458134)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-day-discount0_9 VIP | $4.49 | one-time |
| 30-day VIP | $4.99 | one-time |
| 90-day-discount0_9 VIP | $8.09 | one-time |
| 90-day VIP | $8.99 | one-time |
| One-year-discount0_9 VIP | $14.49 | one-time |
| One-year VIP | $15.90 | one-time |
| three-year-discount0_9 VIP | $22.49 | one-time |
| three-year VIP | $24.99 | one-time |
| Lifetime-discount0_9 VIP | $31.49 | one-time |
| Lifetime VIP | $34.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*