# GB Gas Conversion Calculator vs GasTechApp

The clearest difference is update cadence: GasTechApp at every 4 days against GB Gas Conversion Calculator's every 8 months. GasTechApp also leads on iOS requirement (15.1 vs 26.0). 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.

GB Gas Conversion Calculator ships an update every 8 months, GasTechApp every 4 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | GB Gas Conversion Calculator | GasTechApp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 5 MB | 20 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GB-GAS.CO.UK](https://appshunter.io/developer/425897007) | [Viral Patel](https://appshunter.io/developer/1616163117) |

## What reviewers say

### GB Gas Conversion Calculator

[App page](https://appshunter.io/ios/app/gb-gas-conversion-calculator/id454573950)

This app provides quick conversions for various gas measurements, including natural gas and LPG, as well as water volumes and flow rates. It also handles metric to imperial measurements and electrical unit conversions.

**Highlights:** Natural gas conversions (M3/hr, KW, BTUs), LPG conversions (M3/hr, KW, kg), Water volume and flow calculations, Metric to imperial measurement conversion, Electrical unit conversion (watts, ohms, volts, amps)

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

**In-app purchases:** none


### GasTechApp

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GB Gas Conversion Calculator free?

GB Gas Conversion Calculator is free to download, with no in-app purchases.

### Is GasTechApp free?

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

### Do GB Gas Conversion Calculator or GasTechApp have ads?

Neither GB Gas Conversion Calculator nor GasTechApp shows ads.

### Which is updated more often, GB Gas Conversion Calculator or GasTechApp?

GB Gas Conversion Calculator ships an update every 8 months, and GasTechApp every 4 days. Most recently, GB Gas Conversion Calculator was updated on November 1, 2026 and GasTechApp on October 25, 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.*