HydroCalc Basic vs SprinkCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydroCalc Basic
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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.
SprinkCalc
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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
Verdict
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
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.
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.
| Parameter | HydroCalc Basic | SprinkCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 35 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | Ahmet Selvi |
In-app purchases
HydroCalc Basic
- Premium - Flow Units & Ad-Free$1.99
SprinkCalc
- Pro Weekly$9.997 Days
- Pro Yıllık$39.991 Year
Questions
Is HydroCalc Basic free?
Is SprinkCalc free?
Do HydroCalc Basic or SprinkCalc have ads?
Which is updated more often, HydroCalc Basic or SprinkCalc?
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