# P Numbers vs Pipe Fitting

The clearest difference is review sentiment: P Numbers at 100% against Pipe Fitting's 33%. P Numbers also leads on in-app purchases (none vs 2) and ads (none vs shown). Pipe Fitting's advantage is update cadence (every 5 days vs every 39 months) and ratings volume (116 vs 5). On price and device support there is nothing between them.

Both are free to download. Pipe Fitting sells 2 in-app purchases, starting at $4.99 per 7 days. P Numbers asks for nothing beyond the download.

P Numbers holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Pipe Fitting has 116 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of P Numbers's written reviews are positive against 33% of Pipe Fitting's.

P Numbers ships an update every 39 months, Pipe Fitting every 5 days. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | P Numbers | Pipe Fitting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/p-numbers/id911716649/reviews)** | [4.6 (116 ratings)](https://appshunter.io/ios/app/pipe-fitting/id6743724584/reviews) |
| Number of ratings | 5 | **116** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 39 months | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 42 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [xNeat.com](https://appshunter.io/developer/327498295) |

## 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


### Pipe Fitting

[App page](https://appshunter.io/ios/app/pipe-fitting/id6743724584)

This tool provides precise pipe layout calculations for professionals in welding and fabrication. It offers various offset and fitting calculators, along with data tools for custom angles and triangle solutions. Easily switch between imperial and metric units for field or shop use.

**Highlights:** Offset calculators (basic, rolling, parallel), Back-to-back fitting solutions, Elbow miter cut and triangle solver, Imperial and metric unit switching, Designed for iPhone and iPad

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Fitting | $4.99 | per 7 days |
| Pipe Fitting | $39.99 | per year |


## Frequently asked questions

### Is P Numbers free?

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

### Is Pipe Fitting free?

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

### Which has better reviews, P Numbers or Pipe Fitting?

P Numbers is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while Pipe Fitting averages 4.6 from 116 ratings.

### Do P Numbers or Pipe Fitting have ads?

Pipe Fitting shows ads; P Numbers does not.

### Which is updated more often, P Numbers or Pipe Fitting?

P Numbers ships an update every 39 months, and Pipe Fitting every 5 days. Most recently, P Numbers was updated on June 11, 2026 and Pipe Fitting on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*