# GasTechApp vs Fieldstone HVAC

GasTechApp and Fieldstone HVAC are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

GasTechApp ships an update every 4 days, Fieldstone HVAC weekly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GasTechApp | Fieldstone HVAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 20 MB | 35 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viral Patel](https://appshunter.io/developer/1616163117) | [Fieldstone Software, LLC](https://appshunter.io/developer/718420624) |

## What reviewers say

### GasTechApp

[App page](https://appshunter.io/ios/app/gastechapp/id1616163115)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fieldstone HVAC

[App page](https://appshunter.io/ios/app/fieldstone-hvac/id6745131169)

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

**In-app purchases:** none


## Frequently asked questions

### Is GasTechApp free?

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

### Is Fieldstone HVAC free?

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

### Do GasTechApp or Fieldstone HVAC have ads?

Neither GasTechApp nor Fieldstone HVAC shows ads.

### Which is updated more often, GasTechApp or Fieldstone HVAC?

GasTechApp ships an update every 4 days, and Fieldstone HVAC weekly. Most recently, GasTechApp was updated on November 7, 2026 and Fieldstone HVAC on October 30, 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.*