Comparison

HydroCalc Basic vs SprinkCalc

Price, ratings, monetisation and update history for both apps, side by side — 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 — 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.

About

SprinkCalc

Features
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SprinkCalc — Professional Fire Sprinkler Calculation The only app you need for fire sprinkler system design. Fast, reliable calculations compliant with international standards. SUPPORTED STANDARDS ▸ NFPA 13-2025 — American sprinkler standard ▸ FM Global DS 8-9 — Insurance-approved storage design ▸ BS EN 12845 — European standard KEY FEATURES ▸ ESFR alternative K-factor comparison ▸ NFPA 20 pump selection and pipe sizing ▸ Professional PDF report generation ▸ Metric (SI) and Imperial (US) unit support ▸ Full support in 14 languages APPLICATIONS ▸ Ceiling sprinkler design (LH, OH1, OH2, EH1, EH2) ▸ Storage sprinkler design (Class I-IV, plastics, rubber) ▸ ESFR sprinkler selection (K-160 to K-360) ▸ FM Global in-rack sprinkler evaluation ▸ Water tank and pump capacity calculation Built for fire protection engineers, mechanical (MEP) engineers and sprinkler designers. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

HydroCalc Basic4 screens
SprinkCalc4 screens

Verdict

The call

The clearest difference is iOS requirement: HydroCalc Basic at 15.1 against SprinkCalc's 17.6. On price, update cadence, ads and in-app purchases 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 and SprinkCalc sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HydroCalc Basic ships an update every 11 days, SprinkCalc every 2 weeks. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 5 level
HydroCalc Basic versus SprinkCalc: the parameters behind the verdict, then further details
ParameterHydroCalc BasicSprinkCalc
PriceFreeFree
Update frequencyEvery 11 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size35 MB17 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCAhmet Selvi

In-app purchases

1 purchases

HydroCalc Basic

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

SprinkCalc

Subscriptions2
  • Pro Weekly$9.997 Days
  • Pro Yıllık$39.991 Year

Questions

Is HydroCalc Basic free?
HydroCalc Basic is free to download, with in-app purchases available.
Is SprinkCalc free?
SprinkCalc is free to download, with in-app purchases available.
Do HydroCalc Basic or SprinkCalc have ads?
Neither HydroCalc Basic nor SprinkCalc shows ads.
Which is updated more often, HydroCalc Basic or SprinkCalc?
HydroCalc Basic ships an update every 11 days, and SprinkCalc every 2 weeks. Most recently, HydroCalc Basic was updated on October 4, 2026 and SprinkCalc on October 8, 2026.

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