Comparison

Pipe Flow Wizard vs StemFox Scientific Calculator

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

Head to head
About

Pipe Flow Wizard

Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.

Highlights
  • Flow rate calculations
  • Pressure loss calculations
  • Pipe diameter sizing
  • Maximum pipe length calculation
  • Liquid and gas flow support
  • Customizable material, fluid, and fitting databases
  • Imperial and metric unit support
  • Excel and PDF report generation
Features
Read full description

Pipe Flow Wizard is a fluid flow rate and pressure loss calculator app from Pipe Flow Software. Perform flow rate calculations, calculate pressure drop in a pipe, size a pipe diameter, or calculate a maximum pipe length for a given flow rate at an allowed pressure loss. The original Pipe Flow Wizard software is used by engineers in over 100 countries worldwide and now the new mobile version for iOS brings the same calculations to iPhone and iPad. Find friction loss, find flow rate, find minimum size of pipe diameter for given flow rate and pressure loss, or find length of pipe for a specified maximum pressure loss. Pipe Flow Wizard works for liquid and gas flow and allows for the inclusion of valves, fittings, and changes in elevation. Pressure losses for non-compressible fluids (liquids) are calculated using the Darcy-Weisbach formula, and for compressible fluids (gases), the user can choose from the General Fundamental Flow, Complete Isothermal Flow, AGA, IGT, Panhandle A, Panhandle B, or the Weymouth equation. Pipe Flow Wizard has databases for pipe materials, pipe diameters, pipe fittings (k factors), and fluids. Users can also specify and add their own data for pipe materials, sizes, fittings and fluids. Data and results can be entered and displayed in either imperial or metric units and the units of each individual field can be specified separately. Calculation results include Reynolds number, friction factor, flow type (laminar or turbulent), friction losses, fitting losses, fluid velocities and more. Pipe Flow Wizard calculation results have been verified against 50 cases of published results from well known sources. These include calculated results for both liquid and gas systems. The results of these calculations are included in two Results Verification PDF documents which can be accessed from within the App. There is also a compressible gas flow equations document and a comprehensive user guide. The Pipe Flow Wizard App makes it easy for pipe system engineers to perform flow rate and pressure drop calculations, where the calculation results can easily be shared as an Excel or PDF Report. Calculations can also be saved to the iPhone or iPad and data files can be shared with other users of the software on either macOS or Windows. The Pipe Flow Wizard software has unrivalled functions and features that aren't often found in other flow rate and pressure loss calculator apps: - Liquid properties database for water, oils, acids, and other fluids. - Gas properties database for air, nitrogen, natural gas, and other compressible fluids. - Pipe material database for various Steel, Aluminium, Copper, HDPE, and other pipes. - Fitting database for standard valves and bends, with associated K factor values. - User definable custom materials, fluids and fittings. - Gas properties calculator to help with the creation of user defined gas data at a specific temperature and pressure condition. - Professional Excel and PDF reports showing calculation results. - Results verification against published data to provide confidence in the calculation results. - Configurable post decimals for display on screen and in reports. - Automatic conversion between a wide range of units. - Compatibility with Pipe Flow Wizard files for macOS and Windows. - High quality, reliable software, and unrivalled customer support. Pipe Flow Software programs are trusted and used by engineers in over 100 countries worldwide. Pipe Flow Wizard offers auto-renewable subscriptions. Purchasing a subscription will remove all calculation restrictions and enable full use of the Pipe Flow Wizard App. When a subscription expires, the App will return to Trial Mode, where certain calculations are restricted. Terms of Use: https://www.pipeflow.com/pipe-flow-wizard-software/pipe-flow-wizard-software-license-terms

About

StemFox Scientific Calculator

Streamline complex STEM calculations with a powerful calculator, textbook equation solver, and comprehensive unit converter. Designed for engineers, it reduces busywork and improves accuracy for homework and technical tasks.

Highlights
  • Advanced scientific calculator with 80+ functions
  • Textbook equation solver for any variable
  • Searchable equation database by chapter
  • Fast table lookup with linear interpolation
  • Comprehensive unit converter with 300+ conversions
  • Copy and paste functionality for values and equations
Features
Read full description

Become a better engineer! Stop wasting your time on pointless busy work! Complete your calculations more quickly and accurately. Designed by an engineer, for engineers, StemFox has all the tools you need: Calculator STEM homework is technical and demanding. Accordingly, StemFox includes a calculator able to handle the most complex equations. From trigonometry to Bessel functions, StemFox has you covered! ・More than 80 mathematical functions. ・Quick reference to common basic scientific functions and operators. ・Quickly and easily copy and paste values. ・Quickly reference calculations in all parts of the app. ・Reference previous calculations via the ans(x) method. ・Prettyprint formatting of calculations. Textbook Companions Homework is an important portion of education. Entering equations into your calculator is not. Yet, this tedious error prone activity takes up a significant portion of homework time. Enter StemFox Textbook Companions. Textbook Companions contain references to a textbook’s equations and tables. Equations: ・Equations are referenced by number and name/description. ・Equations are searchable and divided into chapters for quick reference. ・Equations are solvable for any variable. Enter the known variables, and solve for the unknown one. ・Avoid error prone calculator entry. ・Avoid the errors and tedium of entering variables multiple times in the same equation. ・Decreases calculation time by as much as 90% over entering the entire formula yourself! Tables: ・Quickly lookup table values. ・Fast, easy, accurate, table linear interpolation. ・Copy and paste values with a simple tap, no transcription errors! Yay! Unit Converter Unit conversion is a common STEM activity. To speed up this irritating activity, StemFox offers the most comprehensive scientific unit converter available! ・More than two dozen separate units and nearly 300 individual conversions available. ・Tap to copy, tap to paste. Terms of Use: http://stemfox.io/index.php/eula/ Privacy Policy: http://stemfox.io/index.php/privacy-policy/

Screenshots

Pipe Flow Wizard4 screens
StemFox Scientific Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: StemFox Scientific Calculator at 90% against Pipe Flow Wizard's 50%. StemFox Scientific Calculator also leads on rating (4.8 vs 4.6). Pipe Flow Wizard's advantage is ratings volume (103 vs 11) and iOS requirement (11.0 vs 15). On price, update cadence, ads and in-app purchases 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

Both are free to download. Pipe Flow Wizard sells 3 in-app purchases, starting at $9.99 per month and StemFox Scientific Calculator sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StemFox Scientific Calculator holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Pipe Flow Wizard has 103 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 50% of Pipe Flow Wizard's written reviews are positive against 90% of StemFox Scientific Calculator's.

UpkeepUpdate frequency

Pipe Flow Wizard ships an update every 2 months, StemFox Scientific Calculator every 3 months. Both last shipped on November 2, 2026.

Scorecard4 real differences · 6 level
Pipe Flow Wizard versus StemFox Scientific Calculator: the parameters behind the verdict, then further details
ParameterPipe Flow WizardStemFox Scientific Calculator
PriceFreeFree
Rating4.6 (103 ratings)4.8 (11 ratings) — better
Positive reviews50.0% of reviews90.0% of reviews — better
Number of ratings103 — better11
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15
Further details — not scored
Size73 MB24 MB
Age rating4+4+
DeveloperPipe Flow SoftwareJoshua Bryson

Customer experience

Pipe Flow Wizard

All ratings103 ratings
Positive88.3%
Neutral5.8%
Negative5.8%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

StemFox Scientific Calculator

All ratings11 ratings
Positive90.9%
Neutral9.1%
Negative0.0%
Written reviews10 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

In-app purchases

3 purchases

Pipe Flow Wizard

Subscriptions3
  • Pipe Flow Wizard - 1M7 Days trial$9.991 Month
  • Pipe Flow Wizard - 1Y7 Days trial$19.991 Year
  • Pipe Flow Wizard - 3M7 Days trial$20.493 Months
6 purchases

StemFox Scientific Calculator

Subscriptions2
  • Monthly - Unlimited7 Days trial$2.991 Month
  • Yearly - Unlimited7 Days trial$9.991 Year
One-time4
  • Donut$0.99
  • Drink$2.99
  • Taco$4.99
Show 1 more
  • Pizza$9.99

Questions

Is Pipe Flow Wizard free?
Pipe Flow Wizard is free to download, with in-app purchases available.
Is StemFox Scientific Calculator free?
StemFox Scientific Calculator is free to download, with in-app purchases available.
Which has better reviews, Pipe Flow Wizard or StemFox Scientific Calculator?
StemFox Scientific Calculator is rated higher. Pipe Flow Wizard averages 4.6 out of 5 from 103 ratings, while StemFox Scientific Calculator averages 4.8 from 11 ratings.
Do Pipe Flow Wizard or StemFox Scientific Calculator have ads?
Neither Pipe Flow Wizard nor StemFox Scientific Calculator shows ads.
Which is updated more often, Pipe Flow Wizard or StemFox Scientific Calculator?
Pipe Flow Wizard ships an update every 2 months, and StemFox Scientific Calculator every 3 months. Most recently, Pipe Flow Wizard was updated on November 2, 2026 and StemFox Scientific Calculator on November 2, 2026.

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