Comparison

HydroCalc Basic vs PipeSizer

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
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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

PipeSizer

Read full description

PipeSizer helps piping and process engineers screen pipe diameters quickly using flow rate, pipe material, schedule, liner, and traceable velocity ranges. Enter your design conditions and PipeSizer ranks candidate nominal pipe sizes by calculated velocity. The result highlights the best candidate, effective internal diameter, velocity status, and nearby alternatives so you can compare options without rebuilding a spreadsheet. KEY FEATURES β€’ Rank candidate pipe diameters from your flow rate β€’ Compare velocity against traceable recommended ranges β€’ Support for clean water, process fluids, slurry, and utility lines β€’ Carbon steel, stainless steel, HDPE, and common schedules or DR values β€’ Optional liner allowance β€’ SI and Imperial units β€’ Save and reopen sizing results β€’ Share results using the iOS share sheet β€’ Send selected pipe data to Pump Mate β€’ English, Spanish, French, and Portuguese β€’ Fully functional offline PipeSizer is free and designed for fast engineering screening in the office or field. ENGINEERING NOTICE PipeSizer is a screening aid. Verify final selections against project criteria, applicable codes, manufacturer data, and a qualified engineering review.

Screenshots

HydroCalc Basic4 screens
PipeSizer4 screens

Verdict

The call

The clearest difference is in-app purchases: PipeSizer at none against HydroCalc Basic's 1. HydroCalc Basic's advantage is update cadence (every 11 days vs every 6 weeks). On price, ads, device support and iOS requirement 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. PipeSizer asks for nothing beyond the download.

UpkeepUpdate frequency

HydroCalc Basic ships an update every 11 days, PipeSizer every 6 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

Scorecard2 real differences Β· 4 level
HydroCalc Basic versus PipeSizer: the parameters behind the verdict, then further details
ParameterHydroCalc BasicPipeSizer
PriceFreeFree
Update frequencyEvery 11 days β€” betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details β€” not scored
Size35 MB46 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCMario Cerda

In-app purchases

1 purchases

HydroCalc Basic

One-time1
  • Premium - Flow Units & Ad-Free$1.99
None

PipeSizer

No in-app purchases

Questions

Is HydroCalc Basic free?
HydroCalc Basic is free to download, with in-app purchases available.
Is PipeSizer free?
PipeSizer is free to download, with no in-app purchases.
Do HydroCalc Basic or PipeSizer have ads?
Neither HydroCalc Basic nor PipeSizer shows ads.
Which is updated more often, HydroCalc Basic or PipeSizer?
HydroCalc Basic ships an update every 11 days, and PipeSizer every 6 weeks. Most recently, HydroCalc Basic was updated on October 4, 2026 and PipeSizer on October 1, 2026.

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