Comparison

Pipe Flow Liquid Flow Rate 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 Liquid Flow Rate

Calculate fluid flow rate in pipes, including friction and fitting losses, using accurate engineering equations. Features extensive databases for liquids, pipes, and fittings, with customizable units and reporting options.

Highlights
  • Fluid flow rate calculation
  • Friction and fitting loss calculation
  • Extensive material and fluid databases
  • Customizable units (Imperial/Metric)
  • Professional Excel and PDF reports
  • Results verification against published data
Features
Read full description

Pipe Flow Liquid Flow Rate is a flowrate calculator app from Pipe Flow Software that calculates the fluid flow rate in a pipe for a given pressure loss (includes friction losses and fitting losses). It uses the Darcy-Weisbach equation with Colebrook-White friction factors, together with K values for fittings, to provide accurate calculations. Pipe Flow Software applications are used by engineers in over 100 countries worldwide. The Liquid Flow Rate App has an intuitive user interface that allows for easy entry of input data, including changes in elevation, and selection of valves & fittings. Comprehensive results include Reynolds number, friction factor, friction losses, fitting losses, fluid velocities and more. Each result is clearly displayed using expandable sections that reveal further information as needed. Users can select pipe materials, pipe diameters, pipe fittings (k factors) and liquids from the integrated databases, and these can also be extended with user specific data for custom pipe materials, diameters, fittings, and liquids. The App can operate in Imperial or Metric units and each individual field can be further customised to use a specific unit. Results values can be displayed to a specified number of decimal places. The Liquid Flow Rate calculation results have been verified against multiple cases of published data from well known sources. The results of these calculations are included in the Results Verification PDF document which can be accessed from within the App. Engineers can easily perform their flow rate calculations in the office or on site. Professional Excel and PDF reports can easily be shared with others. Results can also be saved to the library within the App. The Pipe Flow Liquid Flow Rate software has unrivalled functions and features: - Liquid properties database for water, oils, acids, and other 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. - 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 iOS, macOS and Windows. - Calculations based on the same reliable calculation engine that is used by Pipe Flow Software's premier Pipe Flow Expert software, which is trusted by users in over 100 countries worldwide. - High quality, reliable software, and unrivalled customer support. Pipe Flow Liquid Flow Rate is offered as a free trial download and can be purchased for a one-time fee within the App. Terms of Use: https://www.pipeflow.com/pipe-flow-mobile-software/pipe-flow-mobile-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 Liquid Flow Rate4 screens
Mechanical Engineering Toolkit4 screens

Verdict

The call

The clearest difference is ads: Pipe Flow Liquid Flow Rate at none against Mechanical Engineering Toolkit's shown. Pipe Flow Liquid Flow Rate also leads on iOS requirement (11.0 vs 15.0). Mechanical Engineering Toolkit's advantage is monetization model (ad-supported vs free with in-app purchases) and ratings volume (64 vs 7). On price, rating, 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

Both are free to download. Pipe Flow Liquid Flow Rate sells 1 one-off in-app purchase 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

On the App Store both sit at effectively the same score — 4.9 for Pipe Flow Liquid Flow Rate against 4.8 for Mechanical Engineering Toolkit. That said, the two scores are not equally well evidenced: Mechanical Engineering Toolkit has 64 ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Pipe Flow Liquid Flow Rate ships an update fortnightly, Mechanical Engineering Toolkit weekly. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Pipe Flow Liquid Flow Rate versus Mechanical Engineering Toolkit: the parameters behind the verdict, then further details
ParameterPipe Flow Liquid Flow RateMechanical Engineering Toolkit
PriceFreeFree
Rating4.9 (7 ratings) — better4.8 (64 ratings)
Positive reviews—57.1% of reviews
Number of ratings764 — better
Update frequencyFortnightlyWeekly — 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
Size67 MB40 MB
Age rating4+4+
DeveloperPipe Flow SoftwareAPPS BAY LIMITED

Customer experience

Pipe Flow Liquid Flow Rate

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Mechanical Engineering Toolkit

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

In-app purchases

1 purchases

Pipe Flow Liquid Flow Rate

One-time1
  • Pipe Flow Flow Rate$4.99
1 purchases

Mechanical Engineering Toolkit

One-time1
  • Remove Ads$2.99

Questions

Is Pipe Flow Liquid Flow Rate free?
Pipe Flow Liquid Flow Rate 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 Liquid Flow Rate or Mechanical Engineering Toolkit?
Pipe Flow Liquid Flow Rate is rated higher. Pipe Flow Liquid Flow Rate averages 4.9 out of 5 from 7 ratings, while Mechanical Engineering Toolkit averages 4.8 from 64 ratings.
Do Pipe Flow Liquid Flow Rate or Mechanical Engineering Toolkit have ads?
Mechanical Engineering Toolkit shows ads; Pipe Flow Liquid Flow Rate does not.
Which is updated more often, Pipe Flow Liquid Flow Rate or Mechanical Engineering Toolkit?
Pipe Flow Liquid Flow Rate ships an update fortnightly, and Mechanical Engineering Toolkit weekly. Most recently, Pipe Flow Liquid Flow Rate was updated on October 8, 2026 and Mechanical Engineering Toolkit on October 10, 2026.

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