Comparison

Pipe Flow Wizard vs Mechanical Engineering Toolkit

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

Mechanical Engineering Toolkit

This utility app provides a comprehensive collection of engineering equations and formulas for students and professionals. Easily perform calculations by selecting a formula and inputting variables, with detailed instructions and reference material included.

Highlights
  • Engineering equations and formulas
  • Mechanics of Material calculations
  • Theory of Elasticity formulas
  • Composite Material properties
  • Reference material
  • Variable input for calculations
Features
Read full description

Mechanical Engineering Toolkit is a professional engineering calculator for students, researchers, and practicing engineers. Choose a formula, enter your variables, and get instant results — with calculation steps, formulas, diagrams, and unit conversions shown along the way. Switch between SI and Imperial units anytime, save favorites, and find the right tool fast with recommendations by major. Save your inputs as named projects, and export any result as text, image, CSV or PDF. Categories and tools: Mechanics of Material • Moments of inertia of plane areas • Force-displacement relation of a bar • Torsion formula and angle of twist • Flexure formula of a beam • Transverse shear stress • Deflections and slopes of cantilever and simple beams • Plane stress transformation and Mohr's circle • Principal stresses and planes • Spherical shell and thin-walled pressure vessel stresses • Buckling load of a column • Thermal deformation and stress • Combined loading • Bolted / riveted joints • Fatigue safety factor • Shaft power and torque Statics • Centroid of an area • Resultant of a force system • Beam reactions • 2D truss analysis Machine Design • Helical compression springs • Spur gear geometry and stresses • Shaft fatigue design (DE-Goodman) • Bearing L10 life • Belt and chain drives • Bolt preload / torque-tension • Fillet weld strength • Press / shrink-fit interference • Shaft critical speed (Dunkerley) • Beam natural frequency (five end conditions) • Torsional natural frequency (one or two rotors) Fluids & Thermal • Reynolds number and flow regime • Pipe pressure drop (Darcy-Weisbach with Colebrook) • Pump and fan power • Composite wall conduction • Fin efficiency • Heat exchanger sizing by LMTD Theory of Elasticity • Constitutive relation of linear elastic material • Stress/strain of linear elastic material Composite Material • Lamina and laminate stress/strain • Lamina engineering constants • Laminate plane and 3D properties • Rule of mixtures • Failure criteria (Tsai-Hill, Tsai-Wu) Reference Tables • Drill & tap chart (metric and imperial thread series) • ISO 286 fits & tolerances • Standard sections (AISC W, IPE, HEB) • Unit converter No account required. Works offline. Available in English, Chinese, German, French, and Japanese.

Screenshots

Pipe Flow Wizard4 screens
Mechanical Engineering Toolkit4 screens

Verdict

The call

The clearest difference is ads: Pipe Flow Wizard at none against Mechanical Engineering Toolkit's shown. Pipe Flow Wizard also leads on iOS requirement (11.0 vs 15.0). Mechanical Engineering Toolkit's advantage is update cadence (every 8 days vs every 2 months) and rating (4.8 vs 4.5). On price, review sentiment, ratings volume 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 Mechanical Engineering Toolkit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mechanical Engineering Toolkit holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 102 and 64 respectively. Written reviews point the same way: 50% of Pipe Flow Wizard's written reviews are positive against 57% of Mechanical Engineering Toolkit's.

UpkeepUpdate frequency

Pipe Flow Wizard ships an update every 2 months, Mechanical Engineering Toolkit every 8 days. The most recent releases landed on September 12, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
Pipe Flow Wizard versus Mechanical Engineering Toolkit: the parameters behind the verdict, then further details
ParameterPipe Flow WizardMechanical Engineering Toolkit
PriceFreeFree
Rating4.5 (102 ratings)4.8 (64 ratings) — better
Positive reviews50.0% of reviews57.1% of reviews — better
Number of ratings102 — better64
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.0 — better15.0
Further details — not scored
Size73 MB38 MB
Age rating4+4+
DeveloperPipe Flow SoftwareAPPS BAY LIMITED

Customer experience

Pipe Flow Wizard

All ratings102 ratings
Positive88.2%
Neutral5.9%
Negative5.9%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Mechanical Engineering Toolkit

All ratings64 ratings
Positive95.3%
Neutral1.6%
Negative3.1%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

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
1 purchases

Mechanical Engineering Toolkit

One-time1
  • Remove Ads$2.99

Questions

Is Pipe Flow Wizard free?
Pipe Flow Wizard is free to download, with in-app purchases available.
Is Mechanical Engineering Toolkit free?
Mechanical Engineering Toolkit is free to download, with in-app purchases available.
Which has better reviews, Pipe Flow Wizard or Mechanical Engineering Toolkit?
Mechanical Engineering Toolkit is rated higher. Pipe Flow Wizard averages 4.5 out of 5 from 102 ratings, while Mechanical Engineering Toolkit averages 4.8 from 64 ratings.
Do Pipe Flow Wizard or Mechanical Engineering Toolkit have ads?
Mechanical Engineering Toolkit shows ads; Pipe Flow Wizard does not.
Which is updated more often, Pipe Flow Wizard or Mechanical Engineering Toolkit?
Pipe Flow Wizard ships an update every 2 months, and Mechanical Engineering Toolkit every 8 days. Most recently, Pipe Flow Wizard was updated on September 12, 2026 and Mechanical Engineering Toolkit on September 24, 2026.

Other comparisons