# Intrflex Field Service vs Gas Engineer App

The clearest difference is iOS requirement: Gas Engineer App at 15.1 against Intrflex Field Service's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Intrflex Field Service ships an update every 4 days, Gas Engineer App every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Intrflex Field Service | Gas Engineer App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | — | Subscription |
| Size | 75 MB | 63 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martin Beardmore](https://appshunter.io/developer/1802041953) | [EsoftArena](https://appshunter.io/developer/1882381423) |

## What reviewers say

### Intrflex Field Service

[App page](https://appshunter.io/ios/app/intrflex-field-service/id6743241282)

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

**In-app purchases:** none


### Gas Engineer App

[App page](https://appshunter.io/ios/app/gas-engineer-app/id6760107629)

Streamline your gas engineering business with this comprehensive mobile tool. Manage customer and job details, generate professional quotes and invoices, and create essential certificates securely. Reduce paperwork and accelerate payments for a more efficient workflow.

**Highlights:** Customer and job management, Quote and invoice generation, Certificate creation, Secure data storage, Reduced paperwork, Faster payments

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

**In-app purchases:** none


## Frequently asked questions

### Is Intrflex Field Service free?

Intrflex Field Service is free to download, with no in-app purchases.

### Is Gas Engineer App free?

Gas Engineer App is free to download, with no in-app purchases.

### Do Intrflex Field Service or Gas Engineer App have ads?

Neither Intrflex Field Service nor Gas Engineer App shows ads.

### Which is updated more often, Intrflex Field Service or Gas Engineer App?

Intrflex Field Service ships an update every 4 days, and Gas Engineer App every 3 days. Most recently, Intrflex Field Service was updated on October 30, 2026 and Gas Engineer App on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*