# Pipe Source vs PJFFfree

The clearest difference is rating: PJFFfree at 5.0 against Pipe Source's 4.0. PJFFfree also leads on update cadence (every 5 weeks vs every 4 months). Pipe Source's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, 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.

PJFFfree 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, PJFFfree every 5 weeks. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pipe Source | PJFFfree |
| --- | --- | --- |
| 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/pjfffree/id629958775/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 12 MB | 7 MB |
| Requires iOS | **7.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Pipe Co. LLC](https://appshunter.io/developer/570134806) | [sigeyosi kanenishi](https://appshunter.io/developer/629958778) |

## 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


### PJFFfree

[App page](https://appshunter.io/ios/app/pjfffree/id629958775)

This app serves as a manual for piping parts, focusing on Japanese specifications. It lists commonly used items based on manufacturer data and public dimension tables, with all measurements in millimeters.

**Highlights:** Piping parts manual, Japanese specifications, Commonly used parts listing, Manufacturer data integration, Millimeter measurements, JIS standards compliance

**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 PJFFfree free?

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

### Which has better reviews, Pipe Source or PJFFfree?

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

### Do Pipe Source or PJFFfree have ads?

PJFFfree shows ads; Pipe Source does not.

### Which is updated more often, Pipe Source or PJFFfree?

Pipe Source ships an update every 4 months, and PJFFfree every 5 weeks. Most recently, Pipe Source was updated on October 2, 2026 and PJFFfree on October 8, 2026.

---

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