# Gas vs Boiler Fault Codes

The clearest difference is price: Gas at Free against Boiler Fault Codes's $4.99. Boiler Fault Codes's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 6 months). On ads, device support and iOS requirement there is nothing between them.

Gas is free to download; Boiler Fault Codes costs $4.99 up front. Gas sells 1 one-off in-app purchase. Boiler Fault Codes asks for nothing beyond the download.

Gas ships an update every 6 months, Boiler Fault Codes every 3 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Gas | Boiler Fault Codes |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | — | Paid |
| Size | 10 MB | 23 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iurii Dubrov](https://appshunter.io/developer/1632057221) | [Mr Combi Training](https://appshunter.io/developer/566867832) |

## What reviewers say

### Gas

[App page](https://appshunter.io/ios/app/gas-main/id1522466692)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get full App version | $7.99 | one-time |


### Boiler Fault Codes

[App page](https://appshunter.io/ios/app/boiler-fault-codes/id1545965490)

Quickly diagnose boiler faults without a manual. Access a comprehensive database of fault codes, causes, and solutions for popular UK boiler models. Includes manufacturer contact details for immediate assistance.

**Highlights:** Extensive fault code database, Causes and solutions for errors, Flow charts for diagnostics, Manufacturer contact details, Offline functionality, Pinch-to-zoom display

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Gas free?

Gas is free to download, with in-app purchases available.

### Is Boiler Fault Codes free?

Boiler Fault Codes costs $4.99, with no in-app purchases.

### Do Gas or Boiler Fault Codes have ads?

Neither Gas nor Boiler Fault Codes shows ads.

### Which is updated more often, Gas or Boiler Fault Codes?

Gas ships an update every 6 months, and Boiler Fault Codes every 3 months. Most recently, Gas was updated on November 7, 2026 and Boiler Fault Codes on November 7, 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.*