# Wire Color Code vs HVAC Calculator Load Pro

The clearest difference is rating: Wire Color Code at 4.6 against HVAC Calculator Load Pro's 4.0. Wire Color Code also leads on ratings volume (1K vs 1). HVAC Calculator Load Pro's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Wire Color Code sells 1 one-off in-app purchase and HVAC Calculator Load Pro sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Wire Color Code holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Wire Color Code has 1K ratings behind it against 1, so its average is the more settled of the two.

Wire Color Code ships an update every 2 months, HVAC Calculator Load Pro every 2 weeks. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Wire Color Code | HVAC Calculator Load Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1K ratings)](https://appshunter.io/ios/app/wire-color-code/id6444740127/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/hvac-calculator-load-pro/id6752215766/reviews) |
| Number of ratings | **1K** | 1 |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 11 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bonsaisoft LLC](https://appshunter.io/developer/376137158) | [Ryan Perchak](https://appshunter.io/developer/1838269532) |

## What reviewers say

### 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


### HVAC Calculator Load Pro

[App page](https://appshunter.io/ios/app/hvac-calculator-load-pro/id6752215766)

This tool provides fast, accurate HVAC load calculations for residential systems. It helps professionals size furnaces, air conditioners, and gas equipment correctly, avoiding guesswork and spreadsheets for confident client recommendations and more closed bids.

**Highlights:** Fast HVAC BTU calculations, Residential furnace & AC sizing, Climate-aware calculations, Reduces sizing errors, Client-ready results, Saves time on estimates

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Load Pro - Weekly | $3.99 | per 7 days |
| HVAC Calculator Load Pro | $12.99 | per month |
| HVAC Load Pro - Yearly | $99.99 | per year |
| HVAC Load Pro Monthly Subscription | $12.99 | one-time |


## Frequently asked questions

### Is Wire Color Code free?

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

### Is HVAC Calculator Load Pro free?

HVAC Calculator Load Pro is free to download, with in-app purchases available.

### Which has better reviews, Wire Color Code or HVAC Calculator Load Pro?

Wire Color Code is rated higher. Wire Color Code averages 4.6 out of 5 from 1K ratings, while HVAC Calculator Load Pro averages 4.0 from 1 ratings.

### Do Wire Color Code or HVAC Calculator Load Pro have ads?

Neither Wire Color Code nor HVAC Calculator Load Pro shows ads.

### Which is updated more often, Wire Color Code or HVAC Calculator Load Pro?

Wire Color Code ships an update every 2 months, and HVAC Calculator Load Pro every 2 weeks. Most recently, Wire Color Code was updated on October 25, 2026 and HVAC Calculator Load Pro on October 10, 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.*