Comparison

Steam Tools vs Pypley

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Steam Tools

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
Read full description

Spirax Sarco would like to introduce our free application to assist customers in identifying the right steam tools for the job. Spirax Sarco is the global leader in the supply of engineered solutions for the efficient design, maintenance and operation of industrial and commercial steam systems. The Steam Tools app enables quick and easy access to both our Steam Tables and a Saturated Steam Pipe Sizing tool. The Steam Tables cover the thermodynamic data for water/steam, supporting the design and operation of expert steam/water equipment. You simply need to enter a pressure or a temperature into the app, returning: - The corresponding pressure or temperature. - Water (hf) (Sensible Heat) - Evaporation (hfg) (Latent Heat) - Steam (hg) (Total Heat) - Specific Volume Steam The pipe sizing tool allows access to Saturated Steam pipeline data, helping you to size a pipeline. To enhance the feature set, both tools offer the output of this data into a range of different standardised units. Download today to get access to this useful tool, and the opportunity to see what else Spirax Sarco can offer. You can also sign up to our service and we will keep you up-to-date with future enhancements of our application and provide you with details our steam solutions. For more information on Spirax Sarco go to http://www.spiraxsarco.com.

About

Pypley

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
Read full description

Pypley calculates flow rate, pressure drop, and pump performance for circular pipe systems with Newtonian liquids. Build serial pipe systems using a pump database, fittings, and valves, with support for custom pumps and fittings stored via iCloud. Designed for hydraulic and process engineers, Pypley supports early-stage design and quick estimations. Key Features: * Converts all project parameters between Metric and US Imperial units. * Calculates flow rate, pipe velocity, and pressure drop in pipes. * Generates pressure loss tables for fittings and pipes in the system. * Includes native and customizable pump database. * Adjusts pump performance via speed (RPM) and impeller diameter. * Plots pump and system performance curves. * Computes K values for fittings using 3K and 2K methods. * Determines Reynolds number for each pipe diameter. * Calculates pipe friction factor using the Colebrook equation. * Reports pump discharge pressure and pressure at each pipe’s start. * Evaluates NPSHr and NPSHa to assess pump cavitation risk. * Supports custom fitting lists with Kv/Cv coefficients or pressure/flow data. * Detects negative pressure in pipelines. * Identifies when centrifugal pumps reach maximum flow capacity. * Organises projects chronologically, with newest first. * Provides an expanded pipe material library with enhanced data. Pypley is a design tool for hydraulic and process applications, ideal for initial designs or rapid calculations. Note: Pypley does not support parallel or network flow analysis. Disclaimer: While we strive for accuracy and will address any issues, the developer is not liable for errors or omissions in Pypley’s calculations.

Screenshots

Steam Tools4 screens
Pypley4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Steam Tools versus Pypley: the parameters behind the verdict, then further details
ParameterSteam ToolsPypley
PriceFree — better$2.99
Rating2.9 (8 ratings) — better1.0 (1 ratings)
Positive reviews31.6% of reviews83.3% of reviews — better
Number of ratings8 — better1
Update frequencyEvery 27 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperSpirax-Sarco Engineering plcAli Mohammed

Customer experience

Steam Tools

All ratings8 ratings
Positive37.5%
Neutral12.5%
Negative50.0%
Written reviews19 reviews
Positive31.6%
Neutral5.3%
Negative63.2%

Pypley

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

Steam Tools

No in-app purchases

None

Pypley

No in-app purchases

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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