# Steam Tools vs Pypley

The clearest difference is review sentiment: Pypley at 83% against Steam Tools's 32%. Pypley also leads on update cadence (every 3 weeks vs every 27 months). Steam Tools's advantage is price (Free vs $2.99) and rating (2.9 vs 1.0). On ads, in-app purchases and device support there is nothing between them.

Steam Tools is free to download; Pypley costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Steam Tools holds the better App Store score, 2.9 against 1.0. That said, the two scores are not equally well evidenced: Steam Tools has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 32% of Steam Tools's written reviews are positive against 83% of Pypley's, so the app with the better star average is not the one people write more warmly about.

Steam Tools ships an update every 27 months, Pypley every 3 weeks. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Steam Tools | Pypley |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[2.9 (8 ratings)](https://appshunter.io/ios/app/steam-tools/id378289552/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/pypley/id1540444278/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | 31.6% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 6 MB | 4 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spirax-Sarco Engineering plc](https://appshunter.io/developer/378289555) | [Ali Mohammed](https://appshunter.io/developer/1540444280) |

## What reviewers say

### Steam Tools

[App page](https://appshunter.io/ios/app/steam-tools/id378289552)

This application provides quick access to steam tables with thermodynamic data for water/steam and a tool to help size saturated steam pipelines. It allows users to input pressure or temperature to retrieve relevant data and offers output in various standardized units.

**Highlights:** Steam Tables for thermodynamic data, Saturated Steam Pipe Sizing tool, Input pressure or temperature, Output data in standardized units, Access to water/steam thermodynamic data

**Features:** macOS Compatibility

**In-app purchases:** none


### Pypley

[App page](https://appshunter.io/ios/app/pypley/id1540444278)

This app calculates flow rate, pressure drop, and pump performance for circular pipe systems. It supports custom pumps and fittings, and allows for unit conversions between Metric and US Imperial. Ideal for hydraulic and process engineers for early-stage design and quick estimations.

**Highlights:** Flow rate and pressure drop calculation, Customizable pump and fitting database, Metric/Imperial unit conversion, Pump performance curve plotting, Cavitation risk assessment (NPSH), Reynolds number and friction factor calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Steam Tools free?

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

### Is Pypley free?

Pypley costs $2.99, with no in-app purchases.

### Which has better reviews, Steam Tools or Pypley?

Steam Tools is rated higher. Steam Tools averages 2.9 out of 5 from 8 ratings, while Pypley averages 1.0 from 1 ratings.

### Do Steam Tools or Pypley have ads?

Neither Steam Tools nor Pypley shows ads.

### Which is updated more often, Steam Tools or Pypley?

Steam Tools ships an update every 27 months, and Pypley every 3 weeks. Most recently, Steam Tools was updated on October 5, 2026 and Pypley on October 8, 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.*