HydroCalc Basic vs Culvert Studio
Price, ratings, monetisation and update history for both apps, side by side β 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 β without the hassle of complex manual computations. Whether youβre sizing new pipelines or analyzing existing systems, the app delivers rapid, accurate results. Key Features Automatic Unit Conversion β Seamlessly switch between US Customary and SI units for length, flow, and diameter. Pipeline-Specific Inputs β Enter pipeline length, flow rate, internal diameter, and pipe material. Powerful Inverse Calculator β 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.
Culvert Studio
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Culvert Studio is a free, educational showcase of our engineering-software capabilities β built to demonstrate the kind of tools we can create for professionals in civil engineering, drainage, stormwater, and hydrology. WHAT YOU CAN EXPLORE - Rational Method + Manning's equation for peak-flow and culvert sizing - Recommended culvert size, design flow, and velocity β in seconds - Inlet/outlet control analysis with performance curves and headwater checks - Multi-barrel, orifice, weir, and tidal-tailwater analysis for coastal culverts OFFLINE CANADIAN IDF DATA - 565 IDF weather stations across all 13 provinces and territories - 28,900+ data points β rainfall intensity/duration/frequency curves, fully offline - No internet required at the job site VISUALIZE & VERIFY - Interactive 2D/3D culvert profile with design-flow animation - Velocity, HW/D, and compliance checks against provincial drainage manuals (ON, AB, BC, SK, MB, QC) - Save projects and calculations; export reports as PDF or GeoJSON/KML MORE THAN A CALCULATOR - Bridge hydraulics, fish passage, detention, channel, and drainage-network tools - Environmental data integration: tidal (CHS IWLS), snow (ECCC), hydrometric (WSC) - Bilingual English / FranΓ§ais AN EDUCATIONAL DEMONSTRATION Culvert Studio is provided as an educational, experimental showcase of what we can build β not as a substitute for professional design software. Always have results verified by a qualified engineer. Built for Canadian conditions. Works offline. If you work in civil engineering, drainage, stormwater, or hydrology, we'd love to hear from you. Request a feature, suggest an improvement, or contact us about a custom solution.
Screenshots
Verdict
The clearest difference is in-app purchases: Culvert Studio at none against HydroCalc Basic's 1. Culvert Studio also leads on update cadence (daily vs every 11 days). 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
Both are free to download. HydroCalc Basic sells 1 one-off in-app purchase. Culvert Studio asks for nothing beyond the download.
HydroCalc Basic ships an update every 11 days, Culvert Studio daily. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.
| Parameter | HydroCalc Basic | Culvert Studio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.1 β better | 16.0 |
| Further details β not scored | ||
| Size | 35 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | Jagdeep Singh |
In-app purchases
HydroCalc Basic
- Premium - Flow Units & Ad-Free$1.99
Culvert Studio
No in-app purchases
Questions
Is HydroCalc Basic free?
Is Culvert Studio free?
Do HydroCalc Basic or Culvert Studio have ads?
Which is updated more often, HydroCalc Basic or Culvert Studio?
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