# TracPipe System Guide vs Diamondback Sizing Calculator

The clearest difference is iOS requirement: Diamondback Sizing Calculator at 13.0 against TracPipe System Guide's 15.1. 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.

TracPipe System Guide ships an update every 9 months, Diamondback Sizing Calculator every 5 months. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | TracPipe System Guide | Diamondback Sizing Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (9 ratings)](https://appshunter.io/ios/app/tracpipe-system-guide/id996885333/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Ad-supported | — |
| Size | 33 MB | 46 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Omega Flex, Inc.](https://appshunter.io/developer/996885332) | [CB Supplies Ltd.](https://appshunter.io/developer/1645869774) |

## What reviewers say

### TracPipe System Guide

[App page](https://appshunter.io/ios/app/tracpipe-system-guide/id996885333)

This application helps users calculate the correct size of flexible gas piping for installations. It supports various sizing methods and gas types, providing accurate results based on selected parameters. Users can also access updated design guides and installation instructions.

**Highlights:** Flexible gas piping sizing calculator, Supports Longest Run or Branch length methods, Calculates capacity based on gas type, pressure, and pressure drop, Easy-to-use calculator wheel, Access to updated Design Guide and Installation Instructions, Find a Sales Representative feature

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

**In-app purchases:** none


### Diamondback Sizing Calculator

[App page](https://appshunter.io/ios/app/diamondback-sizing-calculator/id1645869772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TracPipe System Guide free?

TracPipe System Guide is free to download, with no in-app purchases.

### Is Diamondback Sizing Calculator free?

Diamondback Sizing Calculator is free to download, with no in-app purchases.

### Do TracPipe System Guide or Diamondback Sizing Calculator have ads?

Neither TracPipe System Guide nor Diamondback Sizing Calculator shows ads.

### Which is updated more often, TracPipe System Guide or Diamondback Sizing Calculator?

TracPipe System Guide ships an update every 9 months, and Diamondback Sizing Calculator every 5 months. Most recently, TracPipe System Guide was updated on October 2, 2026 and Diamondback Sizing Calculator on October 11, 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.*