Comparison

Rohrdimensionierung vs HydroniCalc

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

Head to head
About

Rohrdimensionierung

Calculate pipe dimensions and heating capacity for heating systems. Supports steel pipes from DN 15 to 600 and stainless steel press pipes from 15mm to 108mm. Input temperature, density, specific heat, and flow rate.

Highlights
  • Pipe dimension calculation
  • Heating capacity calculation
  • Steel pipe support (DN 15-600)
  • Stainless steel press pipe support (15-108mm)
  • Temperature input
  • Density input
  • Specific heat input
  • Flow rate input
Features
Read full description

Die Rohrdimension und die Wärmeleistung für Heizungsanlagen kann mit den Eingabemöglichkeiten aus den Screenshots rechnerisch ermittelt werden. Verfügbaren Dimensionen für Stahlrohr von DN 15 bis 600 & Edelstahl-Pressrohr von 15mm bis 108mm Eingabemöglichkeiten 0 bis 100 °C 950 bis 1100 Kg/m³ 3,60 bis 4,30 kJ / Kg * K 0,1 bis 2,0 m/s

About

HydroniCalc

Features
Read full description

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

Rohrdimensionierung3 screens
HydroniCalc4 screens

Verdict

The call

The clearest difference is price: HydroniCalc at Free against Rohrdimensionierung's $3.99. HydroniCalc also leads on iOS requirement (17.0 vs 26.0). Rohrdimensionierung's advantage is in-app purchases (none vs 1). On 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

HydroniCalc is free to download; Rohrdimensionierung costs $3.99 up front. HydroniCalc sells 1 one-off in-app purchase. Rohrdimensionierung asks for nothing beyond the download.

Scorecard3 real differences · 4 level
Rohrdimensionierung versus HydroniCalc: the parameters behind the verdict, then further details
ParameterRohrdimensionierungHydroniCalc
Price$3.99Free — better
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size2 MB7 MB
Age rating4+4+
DeveloperBurak DoelekEric Chmara

In-app purchases

None

Rohrdimensionierung

No in-app purchases

1 purchases

HydroniCalc

One-time1
  • Unlock All Calculators$12.99

Questions

Is Rohrdimensionierung free?
Rohrdimensionierung costs $3.99, with no in-app purchases.
Is HydroniCalc free?
HydroniCalc is free to download, with in-app purchases available.
Do Rohrdimensionierung or HydroniCalc have ads?
Neither Rohrdimensionierung nor HydroniCalc shows ads.

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