# Pipe Tools vs CRSI Rebar Reference

The clearest difference is review sentiment: Pipe Tools at 79% against CRSI Rebar Reference's 33%. Pipe Tools also leads on rating (4.1 vs 3.3) and iOS requirement (8.0 vs 15.1). CRSI Rebar Reference's advantage is update cadence (every 5 weeks vs every 12 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Pipe Tools sells 1 one-off in-app purchase and CRSI Rebar Reference sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Pipe Tools holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 19 and 16 respectively. Written reviews point the same way: 79% of Pipe Tools's written reviews are positive against 33% of CRSI Rebar Reference's.

Pipe Tools ships an update every 12 months, CRSI Rebar Reference every 5 weeks. The most recent releases landed on June 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Pipe Tools | CRSI Rebar Reference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (19 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews)** | [3.3 (16 ratings)](https://appshunter.io/ios/app/crsi-rebar-reference/id1423271565/reviews) |
| Number of ratings | **19** | 16 |
| Positive reviews | **78.6% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 57 MB | 51 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [Concrete Reinforcing Steel Institute](https://appshunter.io/developer/1423271564) |

## 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 |


### CRSI Rebar Reference

[App page](https://appshunter.io/ios/app/crsi-rebar-reference/id1423271565)

Access essential data for reinforcing bars (rebar) including specifications, hook details, and marking requirements. This app serves as a quick reference for industry standards and links to online resources.

**Highlights:** ASTM standard reinforcing bar specifications, Standard hook details (90, 135, 180 degrees), Stirrup/tie hook details, ASTM reinforcing bar marking requirements, Minimum yield and tensile requirements, Links to CRSI online resources

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CRSI - Rebar Identifier Module | $2.99 | one-time |
| CRSI Development Length ACI | $4.99 | one-time |
| CRSI Development length AASHTO | $4.99 | one-time |


## Frequently asked questions

### Is Pipe Tools free?

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

### Is CRSI Rebar Reference free?

CRSI Rebar Reference is free to download, with in-app purchases available.

### Which has better reviews, Pipe Tools or CRSI Rebar Reference?

Pipe Tools is rated higher. Pipe Tools averages 4.1 out of 5 from 19 ratings, while CRSI Rebar Reference averages 3.3 from 16 ratings.

### Do Pipe Tools or CRSI Rebar Reference have ads?

Neither Pipe Tools nor CRSI Rebar Reference shows ads.

### Which is updated more often, Pipe Tools or CRSI Rebar Reference?

Pipe Tools ships an update every 12 months, and CRSI Rebar Reference every 5 weeks. Most recently, Pipe Tools was updated on June 10, 2026 and CRSI Rebar Reference on June 1, 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.*