# Pipe Working Pressure Calc vs StrongPass Password Generator

The clearest difference is price: StrongPass Password Generator at Free against Pipe Working Pressure Calc's $2.99. StrongPass Password Generator also leads on update cadence (every 10 days vs every 28 months). Pipe Working Pressure Calc's advantage is in-app purchases (none vs 1) and iOS requirement (13 vs 18.5). On ads and device support there is nothing between them.

StrongPass Password Generator is free to download; Pipe Working Pressure Calc costs $2.99 up front. StrongPass Password Generator sells 1 one-off in-app purchase. Pipe Working Pressure Calc asks for nothing beyond the download.

Pipe Working Pressure Calc ships an update every 28 months, StrongPass Password Generator every 10 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Pipe Working Pressure Calc | StrongPass Password Generator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/pipe-working-pressure-calc/id1447338544/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 1 MB | 5 MB |
| Requires iOS | **13** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Cederic Schmid](https://appshunter.io/developer/1833020611) |

## What reviewers say

### Pipe Working Pressure Calc

[App page](https://appshunter.io/ios/app/pipe-working-pressure-calc/id1447338544)

Calculate fluid pressure, pipe wall thickness, outside diameter, safety factor, or material strength. This physics/math tool provides instant results with support for multiple units and high precision.

**Highlights:** Instant calculations, Copy results to other apps, Formulas included, Supports 16 decimal places, Supports various units, Works on iPhone and iPad, Ad-free and private

**Features:** macOS Compatibility

**In-app purchases:** none


### StrongPass Password Generator

[App page](https://appshunter.io/ios/app/strongpass-password-generator/id6751760901)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StrongPass Pro (Lifetime) | $4.99 | one-time |


## Frequently asked questions

### Is Pipe Working Pressure Calc free?

Pipe Working Pressure Calc costs $2.99, with no in-app purchases.

### Is StrongPass Password Generator free?

StrongPass Password Generator is free to download, with in-app purchases available.

### Do Pipe Working Pressure Calc or StrongPass Password Generator have ads?

Neither Pipe Working Pressure Calc nor StrongPass Password Generator shows ads.

### Which is updated more often, Pipe Working Pressure Calc or StrongPass Password Generator?

Pipe Working Pressure Calc ships an update every 28 months, and StrongPass Password Generator every 10 days. Most recently, Pipe Working Pressure Calc was updated on November 2, 2026 and StrongPass Password Generator on October 30, 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.*