# Pipe Tools vs AutoCAD IRef

The clearest difference is review sentiment: Pipe Tools at 79% against AutoCAD IRef's 10%. Pipe Tools also leads on rating (4.2 vs 1.9) and device support (3 vs 1). AutoCAD IRef's advantage is in-app purchases (none vs 1) and iOS requirement (5.1 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

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

Pipe Tools holds the better App Store score, 4.2 against 1.9. Both are backed by a comparable volume of ratings — 20 and 9 respectively. Written reviews point the same way: 79% of Pipe Tools's written reviews are positive against 10% of AutoCAD IRef's.

Pipe Tools ships an update every 36 months, AutoCAD IRef every 23 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Pipe Tools | AutoCAD IRef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (20 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews)** | [1.9 (9 ratings)](https://appshunter.io/ios/app/autocad-iref/id426032009/reviews) |
| Number of ratings | **20** | 9 |
| Positive reviews | **78.6% of reviews** | 10.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 23 months** |
| Monetization | Free | Free |
| Size | 43 MB | 8 MB |
| Requires iOS | 15.1 | **5.1** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [Digital Cheetah Solutions, Inc.](https://appshunter.io/developer/325304068) |

## 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 |


### AutoCAD IRef

[App page](https://appshunter.io/ios/app/autocad-iref/id426032009)

This app serves as a comprehensive reference guide for AutoCAD 2011 commands. It provides detailed information to help users navigate and utilize the software's features effectively.

**Highlights:** AutoCAD 2011 command reference, Interactive guide, Comprehensive companion

**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 AutoCAD IRef free?

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

### Which has better reviews, Pipe Tools or AutoCAD IRef?

Pipe Tools is rated higher. Pipe Tools averages 4.2 out of 5 from 20 ratings, while AutoCAD IRef averages 1.9 from 9 ratings.

### Do Pipe Tools or AutoCAD IRef have ads?

Neither Pipe Tools nor AutoCAD IRef shows ads.

### Which is updated more often, Pipe Tools or AutoCAD IRef?

Pipe Tools ships an update every 36 months, and AutoCAD IRef every 23 months. Most recently, Pipe Tools was updated on October 8, 2026 and AutoCAD IRef on October 15, 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.*