# Pipe Tools vs PJFFfree

The clearest difference is rating: PJFFfree at 5.0 against Pipe Tools's 4.1. PJFFfree also leads on in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 12 months). Pipe Tools's advantage is ads (none vs shown) and ratings volume (19 vs 1). On price and device support there is nothing between them.

Both are free to download. Pipe Tools sells 1 one-off in-app purchase. PJFFfree asks for nothing beyond the download.

PJFFfree holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Pipe Tools has 19 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of Pipe Tools's written reviews are positive against 100% of PJFFfree's.

Pipe Tools ships an update every 12 months, PJFFfree every 5 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Pipe Tools | PJFFfree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (19 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pjfffree/id629958775/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 78.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 57 MB | 7 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [sigeyosi kanenishi](https://appshunter.io/developer/629958778) |

## What reviewers say

### Pipe Tools

[App page](https://appshunter.io/ios/app/pipe-tools/id372454624)

This app provides a comprehensive steel pipe handbook with charts for wall thickness, mass, and pressure calculations. It facilitates quick conversions and cost comparisons, allowing users to prepare and send customized PDF quotes for pipe sales.

**Highlights:** Steel pipe charts (wall thickness, mass), Unit conversions (feet, meters, pounds, kg), Pipe cost comparison, Customizable PDF quote generation, Mechanical and hardness conversions, Pressure and wall thickness calculations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Tools | $0.99 | one-time |


### 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 Tools free?

Pipe Tools is free to download, with in-app purchases available.

### Is PJFFfree free?

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

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

PJFFfree is rated higher. Pipe Tools averages 4.1 out of 5 from 19 ratings, while PJFFfree averages 5.0 from 1 ratings.

### Do Pipe Tools or PJFFfree have ads?

PJFFfree shows ads; Pipe Tools does not.

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

Pipe Tools ships an update every 12 months, and PJFFfree every 5 weeks. Most recently, Pipe Tools was updated on September 21, 2026 and PJFFfree on September 22, 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.*