Comparison

HydroCalc Basic vs HydroCalc

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

Head to head
About

HydroCalc Basic

Features
Read full description

Pipe Headloss Calculator provides engineers, designers, and students with powerful tools for pipeline hydraulic analysis β€” without the hassle of complex manual computations. Whether you’re sizing new pipelines or analyzing existing systems, the app delivers rapid, accurate results. Key Features Automatic Unit Conversion – Seamlessly switch between US Customary and SI units for length, flow, and diameter. Pipeline-Specific Inputs – Enter pipeline length, flow rate, internal diameter, and pipe material. Powerful Inverse Calculator – Set a target head loss and calculate the required diameter, flow, or length. Instantly view flow velocity, friction head loss, fitting losses, and full system curve data. With a clean interface and fast performance, this app is designed to save time and improve accuracy in hydraulic calculations β€” from the classroom to the field.

About

HydroCalc

Features
Read full description

HydroCalc is a calculation aid for heating and HVAC technicians. Calculate flow from heat output and temperature difference alongside the existing hydraulic calculators. CIRCUIT PROJECTS Create named projects and group circuits by room, category or floor. Record heat output, temperature difference and input sources for each circuit. View total heat output and required flow together. BASELINE AND COMPARISON Capture a fixed baseline and edit later proposals independently. Review differences in totals and share a calculation worksheet with inputs, sources and comparison. German and English. Local projects and calculations work offline. Existing purchase unlocks remain available. Professional calculation aid: manufacturer data, applicable rules, system design and actual measurements take precedence. Check results against the real installation. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HydroCalc Basic4 screens
HydroCalc3 screens

Verdict

The call

The clearest difference is update cadence: HydroCalc Basic at every 11 days against HydroCalc's every 2 months. HydroCalc Basic also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. HydroCalc Basic sells 1 one-off in-app purchase and HydroCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HydroCalc Basic ships an update every 11 days, HydroCalc every 2 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
HydroCalc Basic versus HydroCalc: the parameters behind the verdict, then further details
ParameterHydroCalc BasicHydroCalc
PriceFreeFree
Update frequencyEvery 11 days β€” betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.1 β€” better17.0
Further details β€” not scored
Size35 MB1 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCPiotr Kaminski

In-app purchases

1 purchases

HydroCalc Basic

One-time1
  • Premium - Flow Units & Ad-Free$1.99
1 purchases

HydroCalc

One-time1
  • HydroCalc Pro$3.99

Questions

Is HydroCalc Basic free?
HydroCalc Basic is free to download, with in-app purchases available.
Is HydroCalc free?
HydroCalc is free to download, with in-app purchases available.
Do HydroCalc Basic or HydroCalc have ads?
Neither HydroCalc Basic nor HydroCalc shows ads.
Which is updated more often, HydroCalc Basic or HydroCalc?
HydroCalc Basic ships an update every 11 days, and HydroCalc every 2 months. Most recently, HydroCalc Basic was updated on October 21, 2026 and HydroCalc on October 25, 2026.

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