# P Numbers vs Welding & Pipe Tools

The clearest difference is rating: P Numbers at 4.8 against Welding & Pipe Tools's 3.8. P Numbers also leads on in-app purchases (none vs 1). Welding & Pipe Tools's advantage is update cadence (every 6 months vs every 39 months). On price, ratings volume, ads and device support there is nothing between them.

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

P Numbers holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 5 and 6 respectively.

P Numbers ships an update every 39 months, Welding & Pipe Tools every 6 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | P Numbers | Welding & Pipe Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/p-numbers/id911716649/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/welding-and-pipe-tools/id6745118745/reviews) |
| Number of ratings | 5 | **6** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 6 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 45 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### P Numbers

[App page](https://appshunter.io/ios/app/p-numbers/id911716649)

Quickly access weldability grouping numbers for welding procedures and performance qualifications. This app provides data from authoritative sources like ASME Section IX and AWS B2.1.

**Highlights:** Base metal weldability grouping lookup, Welding procedure qualification data, Performance qualification data, ASME Section IX Table QW/QB-422 data, AWS B2.1 Table C1 and C2 data, ISO/TR 20173 data

**Features:** macOS Compatibility

**In-app purchases:** none


### Welding & Pipe Tools

[App page](https://appshunter.io/ios/app/welding-and-pipe-tools/id6745118745)

This app provides a comprehensive suite of tools for welders, fabricators, and pipe fitters. It includes powerful calculators for offsets, cutting angles, and material weights, along with welding setting recommendations and a material reference guide. Work faster and smarter with offline access to all features.

**Highlights:** Pipe Offset Calculator, Welding Setting Recommendations, Material Reference Guide, Unit Converter, Save Projects & Calculations, Offline Functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $4.99 | one-time |


## Frequently asked questions

### Is P Numbers free?

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

### Is Welding & Pipe Tools free?

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

### Which has better reviews, P Numbers or Welding & Pipe Tools?

P Numbers is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while Welding & Pipe Tools averages 3.8 from 6 ratings.

### Do P Numbers or Welding & Pipe Tools have ads?

Neither P Numbers nor Welding & Pipe Tools shows ads.

### Which is updated more often, P Numbers or Welding & Pipe Tools?

P Numbers ships an update every 39 months, and Welding & Pipe Tools every 6 months. Most recently, P Numbers was updated on October 19, 2026 and Welding & Pipe Tools on October 24, 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.*