Comparison

Pressure loss vs HydroCalc Basic

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

Head to head
About

Pressure loss

Features
Read full description

U-Tube Systems pressure loss calculator is an application to calculate the pressure loss of water in tubes of various diameters. Disclaimer: The information contained on the Pressure Drop Calculator mobile app (the "Service") is for general information purposes only. U-tube Systems BV assumes no responsibility for errors or omissions in the contents on the Service. In no event U-Tube Systems BV shall be liable for any special, direct, indirect, consequential, or incidental damages or any damages whatsoever, whether in an action of contract, negligence or other tort, arising out of or in connection with the use of the Service or the contents of the Service. U-tube Systems BV reserves the right to make additions, deletions, or modification to the contents on the Service at any time without prior notice. U-tube Systems BV does not warrant that the website is free of viruses or other harmful components. (keep in mind this app was not made for the iPad)

About

HydroCalc Basic

Features
Read full description

Pipe Headloss Calculator provides engineers, designers, and students with powerful tools for pipeline hydraulic analysis — 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 — from the classroom to the field.

Screenshots

Pressure loss3 screens
HydroCalc Basic4 screens

Verdict

The call

The clearest difference is in-app purchases: Pressure loss at none against HydroCalc Basic's 1. Pressure loss also leads on iOS requirement (12.0 vs 15.1). HydroCalc Basic's advantage is update cadence (every 11 days vs every 45 months). 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. HydroCalc Basic sells 1 one-off in-app purchase. Pressure loss asks for nothing beyond the download.

UpkeepUpdate frequency

Pressure loss ships an update every 45 months, HydroCalc Basic every 11 days. The most recent releases landed on October 26, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 5 level
Pressure loss versus HydroCalc Basic: the parameters behind the verdict, then further details
ParameterPressure lossHydroCalc Basic
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 45 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size8 MB35 MB
Age rating4+4+
DeveloperU-Tube Systems B.V.Transparent Blue Water LLC

In-app purchases

None

Pressure loss

No in-app purchases

1 purchases

HydroCalc Basic

One-time1
  • Pro Pack$5.99

Questions

Is Pressure loss free?
Pressure loss is free to download, with no in-app purchases.
Is HydroCalc Basic free?
HydroCalc Basic is free to download, with in-app purchases available.
Do Pressure loss or HydroCalc Basic have ads?
Neither Pressure loss nor HydroCalc Basic shows ads.
Which is updated more often, Pressure loss or HydroCalc Basic?
Pressure loss ships an update every 45 months, and HydroCalc Basic every 11 days. Most recently, Pressure loss was updated on October 26, 2026 and HydroCalc Basic on November 8, 2026.

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