# TracPipe UK Sizing & Reference vs CORE Service

The clearest difference is ads: CORE Service at none against TracPipe UK Sizing & Reference's shown. CORE Service also leads on update cadence (every 3 months vs every 19 months) and monetization model (free vs ad-supported). TracPipe UK Sizing & Reference's advantage is iOS requirement (11.0 vs 15.6). On price, review sentiment, 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.

TracPipe UK Sizing & Reference ships an update every 19 months, CORE Service every 3 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TracPipe UK Sizing & Reference | CORE Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (19 ratings)](https://appshunter.io/ios/app/core-service/id1566612696/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | Ad-supported | **Free** |
| Size | 4 MB | 47 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Omega Flex, Inc.](https://appshunter.io/developer/996885332) | [Lennox Industries](https://appshunter.io/developer/355049651) |

## What reviewers say

### TracPipe UK Sizing & Reference

[App page](https://appshunter.io/ios/app/tracpipe-uk-sizing-and-reference/id1075847160)

Calculate the correct size of flexible gas piping for your project. Select gas type, pressure, and pipe length to determine capacity. Access the latest installation specifications and FAQs.

**Highlights:** Flexible gas piping sizing calculator, Capacity calculation based on gas type, pressure, and length, Access to TracPipe® Design and Installation Specification, Frequently asked questions section, Direct contact with TracPipe®, Automatically updated specifications via Wi-Fi

**Features:** macOS Compatibility

**In-app purchases:** none


### CORE Service

[App page](https://appshunter.io/ios/app/core-service/id1566612696)

This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.

**Highlights:** Wireless mobile service app, Guided setup with progress indicators, Enhanced test functionality, Real-time sensor readings and trending, Parameter configuration, Exportable setup summaries

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TracPipe UK Sizing & Reference free?

TracPipe UK Sizing & Reference is free to download, with no in-app purchases.

### Is CORE Service free?

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

### Do TracPipe UK Sizing & Reference or CORE Service have ads?

TracPipe UK Sizing & Reference shows ads; CORE Service does not.

### Which is updated more often, TracPipe UK Sizing & Reference or CORE Service?

TracPipe UK Sizing & Reference ships an update every 19 months, and CORE Service every 3 months. Most recently, TracPipe UK Sizing & Reference was updated on September 24, 2026 and CORE Service on October 7, 2026.

---

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