# P Numbers vs Pipedata

The clearest difference is price: P Numbers at Free against Pipedata's $12.99. P Numbers also leads on review sentiment (100% vs 90%). Pipedata's advantage is update cadence (weekly vs every 39 months) and iOS requirement (11.0 vs 13.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

P Numbers is free to download; Pipedata costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for P Numbers against 4.7 for Pipedata. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews are what separate them: 100% of P Numbers's written reviews are positive against 90% of Pipedata's.

P Numbers ships an update every 39 months, Pipedata weekly. The most recent releases landed on June 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | P Numbers | Pipedata |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/p-numbers/id911716649/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/pipedata-plus/id1046592104/reviews) |
| Number of ratings | **5** | 3 |
| Positive reviews | **100.0% of reviews** | 90.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Weekly** |
| Monetization | **Free** | Paid |
| Size | 13 MB | 40 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [John Bennett](https://appshunter.io/developer/967758845) |

## 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


### Pipedata

[App page](https://appshunter.io/ios/app/pipedata-plus/id1046592104)

Access comprehensive dimensional and weight data for over 160 piping components, including flanges, valves, and fittings. Features design aids like safe spans and pipe flexibility, with a color-coded interface for clarity. Supports metric and imperial units.

**Highlights:** Piping component dimensions and weights, Flange, valve, and fitting data, Design aids (safe spans, flexibility), Metric and U.S. Customary Units, Color-coded component interface, ASME and DIN standard compliance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is P Numbers free?

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

### Is Pipedata free?

Pipedata costs $12.99, with no in-app purchases.

### Which has better reviews, P Numbers or Pipedata?

P Numbers is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while Pipedata averages 4.7 from 3 ratings.

### Do P Numbers or Pipedata have ads?

Neither P Numbers nor Pipedata shows ads.

### Which is updated more often, P Numbers or Pipedata?

P Numbers ships an update every 39 months, and Pipedata weekly. Most recently, P Numbers was updated on June 11, 2026 and Pipedata on September 21, 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.*