# Pipe Fitter Tools vs PJFFfree

The clearest difference is review sentiment: PJFFfree at 100% against Pipe Fitter Tools's 0%. PJFFfree also leads on price (Free vs $0.99) and rating (5.0 vs 1.3). Pipe Fitter Tools's advantage is ads (none vs shown) and chart position (#70 vs unranked). On in-app purchases and device support there is nothing between them.

PJFFfree is free to download; Pipe Fitter Tools costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PJFFfree holds the better App Store score, 5.0 against 1.3. That said, the two scores are not equally well evidenced: Pipe Fitter Tools has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Pipe Fitter Tools's written reviews are positive against 100% of PJFFfree's.

Pipe Fitter Tools ships an update every 36 months, PJFFfree every 5 weeks. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pipe Fitter Tools | PJFFfree |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [1.3 (6 ratings)](https://appshunter.io/ios/app/pipe-fitter-tools/id561551768/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pjfffree/id629958775/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 36 months | **Every 5 weeks** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#70** | — |
| Size | 9 MB | 7 MB |
| Requires iOS | **11.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LMF.Services](https://appshunter.io/developer/493762237) | [sigeyosi kanenishi](https://appshunter.io/developer/629958778) |

## What reviewers say

### Pipe Fitter Tools

[App page](https://appshunter.io/ios/app/pipe-fitter-tools/id561551768)

**Currently charting:** #70 Top Paid · Productivity (US App Store)

This app provides essential calculators for pipe fitting tasks, including temperature conversion, linear length conversion, pipe pitch calculations, and pipe weight calculations. It aims to expand with more tools to assist professionals in their work.

**Highlights:** Temperature converter (Fahrenheit, Celsius, Kelvin), Linear length converter, Pipe pitch calculator, Pipe weight calculator, Melting point chart for common metals

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

**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 Fitter Tools free?

Pipe Fitter Tools costs $0.99, with no in-app purchases.

### Is PJFFfree free?

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

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

PJFFfree is rated higher. Pipe Fitter Tools averages 1.3 out of 5 from 6 ratings, while PJFFfree averages 5.0 from 1 ratings.

### Do Pipe Fitter Tools or PJFFfree have ads?

PJFFfree shows ads; Pipe Fitter Tools does not.

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

Pipe Fitter Tools ships an update every 36 months, and PJFFfree every 5 weeks. Most recently, Pipe Fitter Tools was updated on October 26, 2026 and PJFFfree on October 8, 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.*