# Corstorphine Chiro vs BoilerFix AI

The clearest difference is in-app purchases: Corstorphine Chiro at none against BoilerFix AI's 2. Corstorphine Chiro also leads on update cadence (every 3 weeks vs every 3 months). BoilerFix AI's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. BoilerFix AI sells 2 in-app purchases, starting at $3.99 per month. Corstorphine Chiro asks for nothing beyond the download.

Corstorphine Chiro ships an update every 3 weeks, BoilerFix AI every 3 months. The most recent releases landed on October 28, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Corstorphine Chiro | BoilerFix AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Subscription |
| Size | 108 MB | 7 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Corstorphine Chiropractic ltd](https://appshunter.io/developer/1822285581) | [Stephen Bird](https://appshunter.io/developer/1896013981) |

## What reviewers say

### Corstorphine Chiro

[App page](https://appshunter.io/ios/app/corstorphine-chiro/id6747672489)

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

**In-app purchases:** none


### 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 Corstorphine Chiro free?

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

### Is BoilerFix AI free?

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

### Do Corstorphine Chiro or BoilerFix AI have ads?

Neither Corstorphine Chiro nor BoilerFix AI shows ads.

### Which is updated more often, Corstorphine Chiro or BoilerFix AI?

Corstorphine Chiro ships an update every 3 weeks, and BoilerFix AI every 3 months. Most recently, Corstorphine Chiro was updated on October 28, 2026 and BoilerFix AI on November 9, 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.*