# Pipe Source vs Volume in Pipe

The clearest difference is rating: Volume in Pipe at 5.0 against Pipe Source's 4.0. Pipe Source's advantage is update cadence (every 4 months vs every 26 months) and iOS requirement (7.1 vs 16.6). On price, ratings volume, 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.

Volume in Pipe holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Pipe Source ships an update every 4 months, Volume in Pipe every 26 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Pipe Source | Volume in Pipe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/pipe-source/id570134803/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/volume-in-pipe/id1582068096/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 26 months |
| Monetization | Free | Free |
| Size | 12 MB | 11 MB |
| Requires iOS | **7.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Pipe Co. LLC](https://appshunter.io/developer/570134806) | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) |

## What reviewers say

### Pipe Source

[App page](https://appshunter.io/ios/app/pipe-source/id570134803)

Access comprehensive steel pipe specifications and industry conversion calculators. Easily find pipe charts for various sizes and schedules, and quickly convert units like feet to tons and $/ft to $/ton. Connect with industry experts for immediate assistance.

**Highlights:** Imperial and metric pipe charts, Wall thickness and weight per foot data, Oil Country and Tubular product information, Industry conversion calculators, Contact industry experts, Branch locator

**Features:** macOS Compatibility

**In-app purchases:** none


### Volume in Pipe

[App page](https://appshunter.io/ios/app/volume-in-pipe/id1582068096)

Quickly estimate the gas volume within pipes, launchers, or vessels. Input operating conditions and pipe size for an approximate volume calculation. This tool is designed for rapid field estimates.

**Highlights:** Estimate gas volume, Input operating conditions, Select pipe size, Quick field estimates, Supports iPhone

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Source free?

Pipe Source is free to download, with no in-app purchases.

### Is Volume in Pipe free?

Volume in Pipe is free to download, with no in-app purchases.

### Which has better reviews, Pipe Source or Volume in Pipe?

Volume in Pipe is rated higher. Pipe Source averages 4.0 out of 5 from 1 ratings, while Volume in Pipe averages 5.0 from 1 ratings.

### Do Pipe Source or Volume in Pipe have ads?

Neither Pipe Source nor Volume in Pipe shows ads.

### Which is updated more often, Pipe Source or Volume in Pipe?

Pipe Source ships an update every 4 months, and Volume in Pipe every 26 months. Most recently, Pipe Source was updated on October 2, 2026 and Volume in Pipe on October 6, 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.*