HydroCalc Plus vs POMO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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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.
POMO
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Focus smarter, not harder. Pomodoro Timer is a beautifully designed focus app that helps you manage work and break sessions effortlessly. Multilingual Support Choose from English, Turkish, or Spanish — the app automatically adapts to your device language. Fully Customizable Pick from over a dozen color themes (Midnight, Neon, Pastel, Royal, Forest, Cyberpunk, and more) and unique shape styles like Circle, Capsule, Hexagon, or Neon Glow. Flexible Timer Settings Adjustable work, short break, and long break durations Auto-start breaks or start them manually Vibration feedback when sessions end Track Your Progress See your completed Pomodoros at a glance with a clean, minimalist progress display. Smart Saving Your preferences (theme, shape, durations, and language) are automatically saved — so you can focus on your goals, not your setup. Perfect for: Students, developers, writers, designers, and anyone who wants to stay focused without losing motivation. Boost your productivity — one Pomodoro at a time.
Screenshots
Verdict
The clearest difference is price: POMO at $0.29 against HydroCalc Plus's $6.99. 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
HydroCalc Plus costs $6.99 and POMO $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | HydroCalc Plus | POMO |
|---|---|---|
| Price | $6.99 | $0.29 — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 34 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | Murat Yasin YAZDIRAN |
In-app purchases
HydroCalc Plus
No in-app purchases
POMO
No in-app purchases








