# QuickGasCerts vs BoilerFix AI

The clearest difference is monetization model: QuickGasCerts at free with in-app purchases against BoilerFix AI's subscription. BoilerFix AI's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.0 vs 18.5). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. QuickGasCerts sells 3 in-app purchases, starting at $19.99 per year and BoilerFix AI sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

QuickGasCerts ships an update every 3 weeks, BoilerFix AI every 2 days. The most recent releases landed on September 6, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | QuickGasCerts | BoilerFix AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 18 MB | 7 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Peter Smith](https://appshunter.io/developer/1824255657) | [Stephen Bird](https://appshunter.io/developer/1896013981) |

## What reviewers say

### QuickGasCerts

[App page](https://appshunter.io/ios/app/quickgascerts/id6748575124)

This app streamlines the creation and management of Gas Safety Certificates for gas engineers. It offers a user-friendly interface to simplify administrative tasks.

**Highlights:** Create Gas Safety Certificates, Manage Certificates, Easy-to-use interface, Mobile convenience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick Gas Certs | $19.99 | per year |
| asdasd | $39.99 | per month |
| Yearly subscription | $19.99 | one-time |


### BoilerFix AI

[App page](https://appshunter.io/ios/app/boilerfix-ai/id6765623181)

A comprehensive mobile toolkit designed for UK Gas Safe registered heating engineers. It consolidates fault code databases, control guides, AI diagnostics, customer management, and administrative tools into a single, offline-capable application.

**Highlights:** Fault Code Database (12 manufacturers), AI Diagnostic Assistant, Boiler Passport (QR-linked service history), Customer Hub & Job Calendar, CP12 Certificates generation, Invoicing & Bookkeeping, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BoilerFix AI Basic | $3.99 | per month |
| BoilerFix AI Pro | $5.99 | per month |


## Frequently asked questions

### Is QuickGasCerts free?

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

### Is BoilerFix AI free?

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

### Do QuickGasCerts or BoilerFix AI have ads?

Neither QuickGasCerts nor BoilerFix AI shows ads.

### Which is updated more often, QuickGasCerts or BoilerFix AI?

QuickGasCerts ships an update every 3 weeks, and BoilerFix AI every 2 days. Most recently, QuickGasCerts was updated on September 6, 2026 and BoilerFix AI on September 17, 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.*