# Pipe Tools vs UDiTH

The clearest difference is in-app purchases: UDiTH at none against Pipe Tools's 1. UDiTH also leads on update cadence (monthly vs every 36 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Pipe Tools ships an update every 36 months, UDiTH monthly. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Pipe Tools | UDiTH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (20 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 36 months | **Monthly** |
| Monetization | Free | — |
| Size | 43 MB | 243 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) | [CAXperts GmbH](https://appshunter.io/developer/1095258162) |

## 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 |


### UDiTH

[App page](https://appshunter.io/ios/app/udith/id6756059700)

**Features:** macOS Compatibility, 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 UDiTH free?

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

### Do Pipe Tools or UDiTH have ads?

Neither Pipe Tools nor UDiTH shows ads.

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

Pipe Tools ships an update every 36 months, and UDiTH monthly. Most recently, Pipe Tools was updated on October 8, 2026 and UDiTH on October 4, 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.*