# 2017 Master Electrician Ref. vs Wire Color Code

The clearest difference is price: Wire Color Code at Free against 2017 Master Electrician Ref.'s $9.99. Wire Color Code also leads on update cadence (every 2 months vs every 5 months). 2017 Master Electrician Ref.'s advantage is in-app purchases (none vs 1) and review sentiment (67% vs 43%). On rating, ratings volume, ads and device support there is nothing between them.

Wire Color Code is free to download; 2017 Master Electrician Ref. costs $9.99 up front. Wire Color Code sells 1 one-off in-app purchase. 2017 Master Electrician Ref. asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for 2017 Master Electrician Ref. against 4.6 for Wire Color Code. Both are backed by a comparable volume of ratings — 1.3K and 999 respectively. Written reviews are what separate them: 67% of 2017 Master Electrician Ref.'s written reviews are positive against 43% of Wire Color Code's.

2017 Master Electrician Ref. ships an update every 5 months, Wire Color Code every 2 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 2017 Master Electrician Ref. | Wire Color Code |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/2017-master-electrician-ref/id1275949959/reviews)** | [4.6 (999 ratings)](https://appshunter.io/ios/app/wire-color-code/id6444740127/reviews) |
| Number of ratings | **1.3K** | 999 |
| Positive reviews | **66.7% of reviews** | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#129** | — |
| Size | 46 MB | 13 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [PawEng, LLC](https://appshunter.io/developer/390058606) | [Bonsaisoft LLC](https://appshunter.io/developer/376137158) |

## What reviewers say

### 2017 Master Electrician Ref.

[App page](https://appshunter.io/ios/app/2017-master-electrician-ref/id1275949959)

**Currently charting:** #129 Top Paid · Productivity (US App Store)

This digital handbook provides electricians and related professionals with essential electrical formulas, diagrams, and reference tables. It offers calculations, a dictionary of terms, and detailed information on wiring, motors, transformers, and more, all accessible on a mobile device.

**Highlights:** Electrical formulas and calculations, Wiring diagrams for various systems, Motor and transformer specifications, Conductor and ampacity tables, Dictionary of electrician terms, NEMA standards and diagrams, Math and conversion tools

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

**In-app purchases:** none

**What reviewers like**

- 👍 Quick reference
- 🚀 Best app for electrical information
- 🚀 Concise and well-laid out information
- 🚀 Comprehensive electrical references

**What reviewers complain about**

- 🐛 App needs to be updated
- 🐛 Inaccurate information in some areas
- 🐛 Limited functionality compared to expectations
- 🐛 Overlapping table of contents

**Reported bugs**

- Conduit fill information missing for certain types
- Login screen freezes
- Compatibility issues with older devices

**Requested features**

- Update to latest NEC code
- Add calculation tools for conduit fill and voltage drop
- Improve user interface and navigation


### Wire Color Code

[App page](https://appshunter.io/ios/app/wire-color-code/id6444740127)

This app helps electricians and DIYers identify electrical wire colors globally. It offers country-specific codes, a large circuit database, and quick search functionality. Customize colors for your projects and enjoy a user-friendly interface for efficient electrical panel wiring.

**Highlights:** Global country-specific wire color codes, Extensive circuit database (up to 1000 circuits), Quick search for phase colors, Customizable phase colors for projects, User-friendly interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $9.99 | one-time |

**What reviewers like**

- 🚀 Saves time identifying wire colors and circuit numbers
- 📚 Useful reference tool for electricians
- 🎯 Helpful for professional electrical work
- 👍 Intuitive and illustrative design

**What reviewers complain about**

- 💰 Hidden costs beyond initial purchase price
- 🔒 Account/license transfer issues between devices
- 📉 Limited free version functionality (only 11 circuits)
- ⚠️ Overpriced for basic information
- 🎨 Could use better UI/UX design

**Reported bugs**

- App locks users out after switching phones despite previous purchase
- License/purchase not properly restored on new devices

**Requested features**

- Ability to change order or hide countries/regions not needed
- More comprehensive free version with expanded circuit options
- Better visual design and polish


## Frequently asked questions

### Is 2017 Master Electrician Ref. free?

2017 Master Electrician Ref. costs $9.99, with no in-app purchases.

### Is Wire Color Code free?

Wire Color Code is free to download, with in-app purchases available.

### Which has better reviews, 2017 Master Electrician Ref. or Wire Color Code?

2017 Master Electrician Ref. is rated higher. 2017 Master Electrician Ref. averages 4.7 out of 5 from 1.3K ratings, while Wire Color Code averages 4.6 from 999 ratings.

### Do 2017 Master Electrician Ref. or Wire Color Code have ads?

Neither 2017 Master Electrician Ref. nor Wire Color Code shows ads.

### Which is updated more often, 2017 Master Electrician Ref. or Wire Color Code?

2017 Master Electrician Ref. ships an update every 5 months, and Wire Color Code every 2 months. Most recently, 2017 Master Electrician Ref. was updated on September 22, 2026 and Wire Color Code on September 21, 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.*