# Pipe Tools vs UNITS MASTER

The clearest difference is price: Pipe Tools at Free against UNITS MASTER's $6.99. Pipe Tools also leads on ratings volume (20 vs 6). UNITS MASTER's advantage is in-app purchases (none vs 1) and update cadence (every 4 months vs every 36 months). On rating, review sentiment, ads and device support there is nothing between them.

Pipe Tools is free to download; UNITS MASTER costs $6.99 up front. Pipe Tools sells 1 one-off in-app purchase. UNITS MASTER asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for Pipe Tools against 4.3 for UNITS MASTER. Both are backed by a comparable volume of ratings — 20 and 6 respectively. Written reviews are what separate them: 79% of Pipe Tools's written reviews are positive against 75% of UNITS MASTER's.

Pipe Tools ships an update every 36 months, UNITS MASTER every 4 months. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Pipe Tools | UNITS MASTER |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [4.2 (20 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/units-master/id1428926317/reviews)** |
| Number of ratings | **20** | 6 |
| Positive reviews | **78.6% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 4 months** |
| Monetization | **Free** | Paid |
| Size | 43 MB | 13 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) |

## 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, Vision Pro support

**In-app purchases (1)**

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


### UNITS MASTER

[App page](https://appshunter.io/ios/app/units-master/id1428926317)

This app is a comprehensive unit conversion calculator for length, distance, and area. It supports a vast array of US and metric units, offering both fractional and decimal calculations with customizable rounding. Users can also perform complex mathematical operations and access a calculation history.

**Highlights:** Extensive US and metric unit support, Fractional and decimal calculations, Customizable rounding precision, Complex calculation capabilities, Calculation history and sharing, Multiple output formats

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Tools free?

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

### Is UNITS MASTER free?

UNITS MASTER costs $6.99, with no in-app purchases.

### Which has better reviews, Pipe Tools or UNITS MASTER?

UNITS MASTER is rated higher. Pipe Tools averages 4.2 out of 5 from 20 ratings, while UNITS MASTER averages 4.3 from 6 ratings.

### Do Pipe Tools or UNITS MASTER have ads?

Neither Pipe Tools nor UNITS MASTER shows ads.

### Which is updated more often, Pipe Tools or UNITS MASTER?

Pipe Tools ships an update every 36 months, and UNITS MASTER every 4 months. Most recently, Pipe Tools was updated on October 8, 2026 and UNITS MASTER on September 29, 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.*