# AWG Calculator vs MasterElec

The clearest difference is update cadence: AWG Calculator at every 4 weeks against MasterElec's every 3 months. AWG Calculator also leads on ratings volume (70 vs 9). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. AWG Calculator sells 10 in-app purchases, starting at $6.99 per month and MasterElec sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for AWG Calculator against 4.6 for MasterElec. That said, the two scores are not equally well evidenced: AWG Calculator has 70 ratings behind it against 9, so its average is the more settled of the two.

AWG Calculator ships an update every 4 weeks, MasterElec every 3 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AWG Calculator | MasterElec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (70 ratings)](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109/reviews) |
| Number of ratings | **70** | 9 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 59 MB | 28 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Melchisedec Martinez Rodriguez](https://appshunter.io/developer/1534398511) | [TWOSCRIPTS LABS INC.](https://appshunter.io/developer/1861222980) |

## What reviewers say

### AWG Calculator

[App page](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204)

This professional tool provides electricians with accurate, code-based electrical calculations for wire sizing, voltage drop, circuit breakers, and more. It includes NEC® code references and specialized calculations for various systems. Save time and ensure accuracy in the field or during planning.

**Highlights:** Wire size (AWG) calculations, Voltage drop calculation, Circuit breaker sizing, NEC® 2023/2026 searchable articles, Material and temperature customization, Electrical estimation tools

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All access 1 Month | $6.99 | per month |
| All Access 1 Year | $59.99 | per year |
| Get 100 Coins Now! | $0.99 | one-time |
| Breaker Size Calculation | $1.99 | one-time |
| Conduit Size Calculation | $1.99 | one-time |
| Electrical Tables | $2.99 | one-time |
| Box Fill Calculation | $2.99 | one-time |
| Electrical Estimate Creator | $2.99 | one-time |
| Ampacity of conductors | $3.99 | one-time |
| Compact Mode for Branch, Fe... | $4.99 | one-time |


### 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 |


## Frequently asked questions

### Is AWG Calculator free?

AWG Calculator is free to download, with in-app purchases available.

### Is MasterElec free?

MasterElec is free to download, with in-app purchases available.

### Which has better reviews, AWG Calculator or MasterElec?

AWG Calculator is rated higher. AWG Calculator averages 4.7 out of 5 from 70 ratings, while MasterElec averages 4.6 from 9 ratings.

### Do AWG Calculator or MasterElec have ads?

Neither AWG Calculator nor MasterElec shows ads.

### Which is updated more often, AWG Calculator or MasterElec?

AWG Calculator ships an update every 4 weeks, and MasterElec every 3 months. Most recently, AWG Calculator was updated on November 3, 2026 and MasterElec 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.*