# HVAC Quick Load vs ICM X Ref

The clearest difference is price: ICM X Ref at Free against HVAC Quick Load's $6.99. ICM X Ref also leads on rating (5.0 vs 3.3) and in-app purchases (none vs 1). HVAC Quick Load's advantage is ratings volume (3 vs 1). On ads and device support there is nothing between them.

ICM X Ref is free to download; HVAC Quick Load costs $6.99 up front. HVAC Quick Load sells 1 one-off in-app purchase. ICM X Ref asks for nothing beyond the download.

ICM X Ref holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

HVAC Quick Load ships an update every 9 months, ICM X Ref every 2 months. The most recent releases landed on September 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | HVAC Quick Load | ICM X Ref |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/hvac-quick-load/id365781247/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/icm-x-ref/id1198779447/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 50 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [ICM controls corp](https://appshunter.io/developer/879929077) |

## What reviewers say

### HVAC Quick Load

[App page](https://appshunter.io/ios/app/hvac-quick-load/id365781247)

This app provides quick, rule-of-thumb HVAC load calculations for various building types. It estimates heating and cooling loads, as well as air flows, based on building type, area, and occupancy. Results can be emailed with an Excel spreadsheet attachment for further analysis.

**Highlights:** Rule-of-thumb HVAC load calculations, Supports commercial, industrial, and residential buildings, Estimates cooling/heating loads and air flows, Email results with Excel spreadsheet attachment, IP and SI unit support, HVAC Equipment Locator included

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Equipment Locator | $9.99 | one-time |


### ICM X Ref

[App page](https://appshunter.io/ios/app/icm-x-ref/id1198779447)

This application allows users to search for ICM part numbers as aftermarket replacements for OEM products. It also helps locate nearby distributors and provides direct access to ICM technical support.

**Highlights:** Search ICM part numbers, Find aftermarket replacements, Locate distributors, Contact technical support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Quick Load free?

HVAC Quick Load costs $6.99, and also offers in-app purchases.

### Is ICM X Ref free?

ICM X Ref is free to download, with no in-app purchases.

### Which has better reviews, HVAC Quick Load or ICM X Ref?

ICM X Ref is rated higher. HVAC Quick Load averages 3.3 out of 5 from 3 ratings, while ICM X Ref averages 5.0 from 1 ratings.

### Do HVAC Quick Load or ICM X Ref have ads?

Neither HVAC Quick Load nor ICM X Ref shows ads.

### Which is updated more often, HVAC Quick Load or ICM X Ref?

HVAC Quick Load ships an update every 9 months, and ICM X Ref every 2 months. Most recently, HVAC Quick Load was updated on September 22, 2026 and ICM X Ref on October 14, 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.*