# HVAC Quick Load vs ASHRAE 365

The clearest difference is review sentiment: HVAC Quick Load at 45% against ASHRAE 365's 0%. ASHRAE 365's advantage is price (Free vs $6.99) and rating (4.2 vs 3.3). On ads, device support and iOS requirement there is nothing between them.

ASHRAE 365 is free to download; HVAC Quick Load costs $6.99 up front. HVAC Quick Load sells 1 one-off in-app purchase. ASHRAE 365 asks for nothing beyond the download.

ASHRAE 365 holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews complicate that: 45% of HVAC Quick Load's written reviews are positive against 0% of ASHRAE 365's, so the app with the better star average is not the one people write more warmly about.

HVAC Quick Load ships an update every 9 months, ASHRAE 365 every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HVAC Quick Load | ASHRAE 365 |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/hvac-quick-load/id365781247/reviews) | **[4.2 (10 ratings)](https://appshunter.io/ios/app/ashrae-365/id1337759799/reviews)** |
| Number of ratings | 3 | **10** |
| Positive reviews | **45.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 53 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [ASHRAE, Inc.](https://appshunter.io/developer/375374912) |

## 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 |


### ASHRAE 365

[App page](https://appshunter.io/ios/app/ashrae-365/id1337759799)

Access ASHRAE information year-round. Stay updated on global conferences and events, connect with the community via social media, and discover resources to support the Society.

**Highlights:** Conference and event updates, Social media integration, Resource discovery, Society support information, Year-round access

**Features:** Vision Pro support

**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 ASHRAE 365 free?

ASHRAE 365 is free to download, with no in-app purchases.

### Which has better reviews, HVAC Quick Load or ASHRAE 365?

ASHRAE 365 is rated higher. HVAC Quick Load averages 3.3 out of 5 from 3 ratings, while ASHRAE 365 averages 4.2 from 10 ratings.

### Do HVAC Quick Load or ASHRAE 365 have ads?

Neither HVAC Quick Load nor ASHRAE 365 shows ads.

### Which is updated more often, HVAC Quick Load or ASHRAE 365?

HVAC Quick Load ships an update every 9 months, and ASHRAE 365 every 4 months. Most recently, HVAC Quick Load was updated on October 23, 2026 and ASHRAE 365 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.*