# AirMaxx Lite vs HVAC Toolkit Lite

The clearest difference is rating: HVAC Toolkit Lite at 5.0 against AirMaxx Lite's 4.4. HVAC Toolkit Lite also leads on update cadence (every 11 days vs every 2 months). AirMaxx Lite's advantage is ratings volume (7 vs 1) and iOS requirement (9.3 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HVAC Toolkit Lite holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AirMaxx Lite has 7 ratings behind it against 1, so its average is the more settled of the two.

AirMaxx Lite ships an update every 2 months, HVAC Toolkit Lite every 11 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AirMaxx Lite | HVAC Toolkit Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/airmaxx-lite/id1319340072/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-toolkit-lite/id1628371325/reviews)** |
| Number of ratings | **7** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | Free |
| Size | 23 MB | 61 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Comfort Institute, Inc.](https://appshunter.io/developer/1097845247) | [Mohamad Jaber](https://appshunter.io/developer/1623246777) |

## What reviewers say

### AirMaxx Lite

[App page](https://appshunter.io/ios/app/airmaxx-lite/id1319340072)

Quickly calculate HVAC system fan and static pressure performance. Input basic system information and two static pressure measurements to receive clear visual representations of system status. Includes tutorials and articles for guidance.

**Highlights:** Fan airflow performance calculation, Static pressure performance calculation, Visual system status representation, Input nameplate information, Two static pressure measurements, Includes tutorials and articles

**Features:** macOS Compatibility

**In-app purchases:** none


### HVAC Toolkit Lite

[App page](https://appshunter.io/ios/app/hvac-toolkit-lite/id1628371325)

This tool assists HVAC engineers with design checks and quick calculations. It offers various tools for ducting friction loss, pipe sizing, ventilation, and heat load estimations, providing instructions and formulas for each calculation.

**Highlights:** Friction loss calculation, Pipe sizing, Ventilation calculations, Heat load estimation, Pump head calculation, Fan ESP calculation, Metric/Imperial units, English/Arabic language support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AirMaxx Lite free?

AirMaxx Lite is free to download, with no in-app purchases.

### Is HVAC Toolkit Lite free?

HVAC Toolkit Lite is free to download, with no in-app purchases.

### Which has better reviews, AirMaxx Lite or HVAC Toolkit Lite?

HVAC Toolkit Lite is rated higher. AirMaxx Lite averages 4.4 out of 5 from 7 ratings, while HVAC Toolkit Lite averages 5.0 from 1 ratings.

### Do AirMaxx Lite or HVAC Toolkit Lite have ads?

Neither AirMaxx Lite nor HVAC Toolkit Lite shows ads.

### Which is updated more often, AirMaxx Lite or HVAC Toolkit Lite?

AirMaxx Lite ships an update every 2 months, and HVAC Toolkit Lite every 11 days. Most recently, AirMaxx Lite was updated on November 6, 2026 and HVAC Toolkit Lite on November 3, 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.*