Comparison

Pipe Flow Calculations vs HydroniCalc

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

Head to head
About

Pipe Flow Calculations

Features
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Pipe Flow Calculations is a professional engineering app designed for accurate and fast calculation of fluid flow in pipes. It helps engineers, technicians, and students analyze flow behavior, pressure losses, and key fluid parameters in real-world systems. Whether you are designing a pipeline, checking an existing system, or learning fluid mechanics, this app provides reliable results with an intuitive interface. Key Features - Pressure drop calculation - Pipe diameter and flow rate calculations - Flow velocity and Reynolds number - Friction factor and fluid properties - Support for multiple calculation scenarios - Metric and Imperial unit systems - Accurate engineering formulas and methods Designed for Real Engineering Use This app is not a basic calculator. It is built for real engineering workflows: - Analyze pipe systems and optimize performance - Compare different calculation scenarios - Work with realistic fluid properties - Get instant results for quick decision making Useful for Students and Professionals

About

HydroniCalc

Features
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HydroniCalc brings together 23 hydronic calculators for heating engineers and installers of water-based heating systems. Everything runs in metric units, offline, and without an account. The calculators are grouped into four families: • Basic hydraulics and pipework: power, flow and temperature difference, diameter and velocity, linear and fitting pressure losses. • Valves, balancing and circulator: the Kv / flow / pressure-drop relationship, valve sizing, balancing, and the pump operating point. • Pressurization, volumes and separation: fill pressure, water expansion, expansion vessel, and system volumes. • Radiators and underfloor heating: radiator output correction, sizing, and underfloor loop length. Each calculator shows the values to enter and displays the result as soon as the required data is valid. An info button explains the purpose of the calculation, the expected inputs, the method, the results, and the usage limits. Built-in Kv tables: look up the Kv values published by manufacturers (manufacturer, product, and generation), then copy a value to paste into your calculation. The tables never fill a calculation automatically; the value is always typed or pasted into the field. Recent calculations: your ten most recent successful calculations are stored locally, so you can find them again and resume them with their values. Eleven calculators are free to use. A single, non-subscription purchase permanently unlocks the other twelve for the Apple account used. If a purchase isn’t recognized, “Restore Purchases” asks the App Store to sync it again.

Screenshots

Pipe Flow Calculations3 screens
HydroniCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: Pipe Flow Calculations at none against HydroniCalc's 1. Pipe Flow Calculations also leads on iOS requirement (13.0 vs 17.0). On price, ads 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. HydroniCalc sells 1 one-off in-app purchase. Pipe Flow Calculations asks for nothing beyond the download.

Scorecard2 real differences · 3 level
Pipe Flow Calculations versus HydroniCalc: the parameters behind the verdict, then further details
ParameterPipe Flow CalculationsHydroniCalc
PriceFreeFree
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size17 MB7 MB
Age rating4+4+
DeveloperApplication Services LLCEric Chmara

In-app purchases

None

Pipe Flow Calculations

No in-app purchases

1 purchases

HydroniCalc

One-time1
  • Unlock All Calculators$12.99

Questions

Is Pipe Flow Calculations free?
Pipe Flow Calculations is free to download, with no in-app purchases.
Is HydroniCalc free?
HydroniCalc is free to download, with in-app purchases available.
Do Pipe Flow Calculations or HydroniCalc have ads?
Neither Pipe Flow Calculations nor HydroniCalc shows ads.

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