# TracPipe System Guide vs Stubbs Petroleum

The clearest difference is update cadence: Stubbs Petroleum at every 4 months against TracPipe System Guide's every 9 months. Stubbs Petroleum also leads on iOS requirement (12.2 vs 15.1). On price, ads, 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 System Guide ships an update every 9 months, Stubbs Petroleum every 4 months. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | TracPipe System Guide | Stubbs Petroleum |
| --- | --- | --- |
| 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 4 months** |
| Monetization | Ad-supported | — |
| Size | 33 MB | 56 MB |
| Requires iOS | 15.1 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Omega Flex, Inc.](https://appshunter.io/developer/996885332) | [Rural Computer Consultants, Inc.](https://appshunter.io/developer/640795441) |

## 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


### Stubbs Petroleum

[App page](https://appshunter.io/ios/app/stubbs-petroleum/id1633671338)

**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 Stubbs Petroleum free?

Stubbs Petroleum is free to download, with no in-app purchases.

### Do TracPipe System Guide or Stubbs Petroleum have ads?

Neither TracPipe System Guide nor Stubbs Petroleum shows ads.

### Which is updated more often, TracPipe System Guide or Stubbs Petroleum?

TracPipe System Guide ships an update every 9 months, and Stubbs Petroleum every 4 months. Most recently, TracPipe System Guide was updated on October 2, 2026 and Stubbs Petroleum on October 15, 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.*