HVAC Quick Load vs ICM X Ref
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HVAC Quick Load
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.
- 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
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The HVAC Quick Load is the one and only rule-of-thumb HVAC heating and cooling load application for the iPhone and iPad. This app performs rule-of-thumb HVAC cooling and heating load calculations for many types of commercial, industrial, institutional, and residential buildings. It allows you to quickly calculate the total required cooling and heating loads (in BTU/hr or Tonnage) and air flows (CFM or L/s) by inputting just the building type, total square area and number of people. You can email all of the inputs and results to any email address. In addition, the email includes an Excel spreadsheet attachment from which you can perform more extensive calculations. The basis of the calculations for this utility come from various authoritative HVAC texts that list average cooling and heating load values per square foot for many building types. All values can be displayed in English (IP) and Metric (SI) units. The following is a sample of some of the types of buildings that can be modeled: 1. Cocktail Lounges, Bars, Taverns, Clubhouses 2. Computer Rooms 3. Dining Halls, Lunch Rooms, Cafeterias, Luncheonettes 4. Hospital Patient Rooms, Nursing Home Patient Rooms 5. Jails 6. Kitchens 7. Libraries, Museums 8. Malls, Shopping Centers 9. Medical/Dental Centers, Clinics, and Offices 10. Nightclubs 11. Offices, Commercial 12. ..... and many more This app is great for use out in the field to quickly analyze the cooling and heating properties of a building. However, please note, that it is by no means a substitute for rigorous heating and cooling load calculations, and HVAC equipment and materials should not be selected based upon the results from this application. We also offer the following additional HVAC applications for the iPhone and iPad: 1. HVAC Duct Sizer 2. HVAC Pipe Sizer – Gas Low Pressure 3. HVAC Pipe Sizer - Gas High Pressure 4. HVAC Pipe Sizer – Liquid 5. HVAC Pipe Sizer – Steam 6. Steam Tables 7. Psychrometric Plus 8. Psychrometric LT 9. HVAC Pipe Sizer Plus 10. HVAC Pipe Sizer Gas Plus 11. HVAC Toolkit 12. HVAC Toolkit Ultimate 13. HVAC Residential Load Calcs 14. HVAC Load Plus 15. HVAC Equipment Locator 16. ASHRAE Duct Fitting Database 17. ASHRAE 62.1 Ventilation Load Calcs 18. HVAC Psych HD 19. HVAC ResLoad-J 20. HVAC Residential Load Calcs HD
ICM X Ref
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.
- Search ICM part numbers
- Find aftermarket replacements
- Locate distributors
- Contact technical support
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ICM Product Cross Reference App: Use this app to look up ICM part number as the aftermarket replacement for your OEM product. Use this app to find a distributor near you. Use this app to contact ICM technical support.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | HVAC Quick Load | ICM X Ref |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 3.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 45.5% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Carmel Software Corporation | ICM controls corp |
Customer experience
HVAC Quick Load
ICM X Ref
In-app purchases
HVAC Quick Load
- HVAC Equipment Locator$9.99
ICM X Ref
No in-app purchases
Questions
Is HVAC Quick Load free?
Is ICM X Ref free?
Which has better reviews, HVAC Quick Load or ICM X Ref?
Do HVAC Quick Load or ICM X Ref have ads?
Which is updated more often, HVAC Quick Load or ICM X Ref?
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