# 2017 Master Electrician Ref. vs Electrical Symbols

The clearest difference is rating: 2017 Master Electrician Ref. at 4.7 against Electrical Symbols's 1.0. 2017 Master Electrician Ref. also leads on review sentiment (67% vs 25%) and update cadence (every 5 months vs every 40 months). Electrical Symbols's advantage is price ($0.99 vs $9.99) and iOS requirement (10.0 vs 12.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

2017 Master Electrician Ref. costs $9.99 and Electrical Symbols $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2017 Master Electrician Ref. holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: 2017 Master Electrician Ref. has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of 2017 Master Electrician Ref.'s written reviews are positive against 25% of Electrical Symbols's.

2017 Master Electrician Ref. ships an update every 5 months, Electrical Symbols every 40 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 2017 Master Electrician Ref. | Electrical Symbols |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[4.7 (1.3K ratings)](https://appshunter.io/ios/app/2017-master-electrician-ref/id1275949959/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/electrical-symbols/id1455261550/reviews) |
| Number of ratings | **1.3K** | 2 |
| Positive reviews | **66.7% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 40 months |
| Monetization | Paid | Paid |
| Best chart rank | **#189** | — |
| Size | 46 MB | 6 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [PawEng, LLC](https://appshunter.io/developer/390058606) | [Wesley de Groot](https://appshunter.io/developer/602359900) |

## What reviewers say

### 2017 Master Electrician Ref.

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

**Currently charting:** #189 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


### Electrical Symbols

[App page](https://appshunter.io/ios/app/electrical-symbols/id1455261550)

This sticker pack provides a collection of electrical symbols for engineers and DIY enthusiasts. Share and discuss symbols to help others with their projects and designs.

**Highlights:** Electrical symbol stickers, Share symbols with others, Help with missing symbols, Designed for electrical engineers, Sticker pack for iMessage

**Features:** iMessage stickers

**In-app purchases:** none


## Frequently asked questions

### Is 2017 Master Electrician Ref. free?

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

### Is Electrical Symbols free?

Electrical Symbols costs $0.99, with no in-app purchases.

### Which has better reviews, 2017 Master Electrician Ref. or Electrical Symbols?

2017 Master Electrician Ref. is rated higher. 2017 Master Electrician Ref. averages 4.7 out of 5 from 1.3K ratings, while Electrical Symbols averages 1.0 from 2 ratings.

### Do 2017 Master Electrician Ref. or Electrical Symbols have ads?

Neither 2017 Master Electrician Ref. nor Electrical Symbols shows ads.

### Which is updated more often, 2017 Master Electrician Ref. or Electrical Symbols?

2017 Master Electrician Ref. ships an update every 5 months, and Electrical Symbols every 40 months. Most recently, 2017 Master Electrician Ref. was updated on October 29, 2026 and Electrical Symbols on October 24, 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.*