Comparison

HydroCalc Plus vs POMO

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

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 Pro Apart: Unlike basic calculators, HydroCalc Pro 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: Premium modules are available in English and Spanish.

About

POMO

Features
Read full description

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

HydroCalc Plus4 screens
POMO4 screens

Verdict

The call

The clearest difference is in-app purchases: POMO at none against HydroCalc Plus's 4. POMO also leads on price ($0.29 vs $3.99). On ads, 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

HydroCalc Plus costs $3.99 and POMO $0.29 up front. HydroCalc Plus sells 4 one-off in-app purchases. POMO asks for nothing beyond the download.

Scorecard2 real differences · 8 level
HydroCalc Plus versus POMO: the parameters behind the verdict, then further details
ParameterHydroCalc PlusPOMO
Price$3.99$0.29 — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size34 MB33 MB
Age rating4+4+
DeveloperTransparent Blue Water LLCMurat Yasin YAZDIRAN

In-app purchases

4 purchases

HydroCalc Plus

One-time4
  • Pump Power Calculator$1.99
  • System Curve Generator$1.99
  • Pipe Database$1.99
Show 1 more
  • Industrial Fluids Pack$2.99
None

POMO

No in-app purchases

Questions

Is HydroCalc Plus free?
HydroCalc Plus costs $3.99, and also offers in-app purchases.
Is POMO free?
POMO costs $0.29, with no in-app purchases.
Do HydroCalc Plus or POMO have ads?
Neither HydroCalc Plus nor POMO shows ads.

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