# HVAC Xchanger vs Quartermaster Pro

The clearest difference is update cadence: Quartermaster Pro at weekly against HVAC Xchanger's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.

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

HVAC Xchanger ships an update every 15 months, Quartermaster Pro weekly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | HVAC Xchanger | Quartermaster Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Weekly** |
| Size | 53 MB | 69 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jordan McRae](https://appshunter.io/developer/1403640162) | [Quartermaster Inc](https://appshunter.io/developer/1276175408) |

## What reviewers say

### HVAC Xchanger

[App page](https://appshunter.io/ios/app/hvac-xchanger/id1403640163)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quartermaster Pro

[App page](https://appshunter.io/ios/app/quartermaster-pro/id1450279391)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Xchanger free?

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

### Is Quartermaster Pro free?

Quartermaster Pro is free to download, with no in-app purchases.

### Do HVAC Xchanger or Quartermaster Pro have ads?

Neither HVAC Xchanger nor Quartermaster Pro shows ads.

### Which is updated more often, HVAC Xchanger or Quartermaster Pro?

HVAC Xchanger ships an update every 15 months, and Quartermaster Pro weekly. Most recently, HVAC Xchanger was updated on November 2, 2026 and Quartermaster Pro on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*