Comparison

HydroCalc Plus vs RiegoAppArg

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

Head to head
About

HydroCalc Plus

A professional tool for hydraulic engineers to calculate pressure losses in piping systems. It supports US and SI units, offers an extensive pipe material and fittings database, and includes inverse calculations for design optimization.

Highlights
  • Friction head loss calculation (Hazen-Williams)
  • US and SI unit support
  • Extensive pipe material library
  • Fittings and valves database
  • Inverse calculation mode
  • Real-time results (velocity, losses)
Features
Read full description

The COMPLETE version of HydroCalc, with what the free app doesn't have: the FITTINGS SELECTOR. Pick elbows, valves, tees and reducers piece by piece and the app computes minor losses for you — in the calculator, the inverse calculator and the system curve. No K-value tables, no transcription errors. ALL INCLUDED: pump power, system curve, pipe database and Darcy-Weisbach with real fluids come with the app. One purchase, no in-app purchases. Professional hydraulic engineering tool for calculating pressure losses in piping systems. Essential for engineers, plumbers, and contractors designing water distribution networks. Key Features: Calculate friction head losses using industry-standard Hazen-Williams equation Support for both US (ft, gpm, psi) and SI (m, lps, bar) units Extensive pipe material library with pre-defined roughness coefficients (C-factors) Complete fittings and valves database including elbows, tees, valves, contractions, and expansions Inverse calculations to determine optimal pipe diameter, flow rate, or length for target head loss Real-time results showing velocity, friction loss, minor losses, and total system head loss What Sets Plus Apart: Unlike basic calculators, HydroCalc Plus accounts for both major losses (pipe friction) and minor losses (fittings and valves). The app includes a comprehensive database of K-factors for various components, allowing accurate total system pressure loss calculations. Perfect For: Water supply system design Irrigation network planning HVAC piping calculations Fire protection systems Industrial fluid transport Educational purposes in hydraulic engineering Technical Capabilities: The app considers all critical factors affecting pressure loss: flow velocity, pipe diameter, internal roughness, pipe length, and fitting configurations. Materials include PVC, polyethylene, steel, cast iron, concrete, and more with accurate C-factors ranging from 120-150. Inverse Calculation Mode: Unique feature allowing backward calculations - determine required pipe size for allowable head loss, maximum flow capacity, or optimal pipe length for your system constraints. Simple, intuitive interface with instant results. No internet connection required. Professional-grade calculations in your pocket. Note: the advanced modules are available in English and Spanish.

About

RiegoAppArg

Features
Read full description

RiegoApp es la herramienta de gestión hídrica para productores agrícolas, ingenieros agrónomos y asesores que quieren optimizar el riego con datos precisos y actualizados. * Calculá el balance hídrico de cada lote. La app combina datos meteorológicos en tiempo real, imágenes satelitales y parámetros de suelo para darte un número concreto: cuánta agua tiene el suelo hoy y cuándo hay que regar. ¿QUÉ PODÉS HACER CON RIEGOAPP? * Gestioná tus lotes * Creá lotes georreferenciados con polígono dibujado en mapa. Asigná cultivo, tipo de suelo y umbrales de riego personalizados. * Balance hídrico diario * Seguí el agua útil disponible en el suelo día a día. Registrá lluvias y riegos. Recibí alertas automáticas cuando el cultivo necesita agua. * Clima integrado * Pronóstico meteorológico actualizado para cada lote: temperatura, humedad, viento y radiación solar. Cálculo automático de ETP diaria. * NDVI satelital * Consultá el índice de vegetación de tus lotes desde imágenes Sentinel-2. El Kc del cultivo se ajusta automáticamente con datos reales de cobertura vegetal. * Alertas de heladas * Panel de riesgo de heladas con temperatura mínima proyectada y alertas push para que puedas actuar a tiempo. * Grados día y proyecciones * Calculá la acumulación de grados día (GDD) para estimar fenología y proyectá el balance hídrico hacia adelante. * Mapa de lluvias * Visualizá la distribución espacial de lluvias en tu zona para comparar con registros propios. * Funciona sin conexión * La app sincroniza datos cuando hay internet y sigue funcionando en zonas rurales sin señal. CULTIVOS SOPORTADOS Soja, maíz, trigo, girasol, papa, tomate, vid, olivo, palta, citrus, manzano, peral, durazno, alfalfa, caña de azúcar, algodón, frutilla, y más de 40 cultivos extensivos, frutales y hortícolas. MODELO FREEMIUM Empezá gratis: creá lotes, seguí el balance y recibí alertas sin costo. Las funciones avanzadas (NDVI satelital, proyecciones, análisis histórico) están disponibles con suscripción.

Screenshots

HydroCalc Plus4 screens
RiegoAppArg4 screens

Verdict

The call

The clearest difference is price: RiegoAppArg at Free against HydroCalc Plus's $6.99. RiegoAppArg also leads on update cadence (every 4 days vs every 3 weeks). On ads, in-app purchases, device support and iOS requirement 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

RiegoAppArg is free to download; HydroCalc Plus costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HydroCalc Plus ships an update every 3 weeks, RiegoAppArg every 4 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
HydroCalc Plus versus RiegoAppArg: the parameters behind the verdict, then further details
ParameterHydroCalc PlusRiegoAppArg
Price$6.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size34 MB61 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCLuciano Nico Acosta

In-app purchases

None

HydroCalc Plus

No in-app purchases

None

RiegoAppArg

No in-app purchases

Questions

Is HydroCalc Plus free?
HydroCalc Plus costs $6.99, with no in-app purchases.
Is RiegoAppArg free?
RiegoAppArg is free to download, with no in-app purchases.
Do HydroCalc Plus or RiegoAppArg have ads?
Neither HydroCalc Plus nor RiegoAppArg shows ads.
Which is updated more often, HydroCalc Plus or RiegoAppArg?
HydroCalc Plus ships an update every 3 weeks, and RiegoAppArg every 4 days. Most recently, HydroCalc Plus was updated on November 1, 2026 and RiegoAppArg on October 28, 2026.

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