Comparison

Duct Calculator vs FluidsMaster

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

Head to head
About

Duct Calculator

This professional HVAC utility assists engineers and technicians with precise duct sizing and airflow calculations for ventilation systems. It simplifies essential calculations for both design and installation work, improving on-site efficiency.

Highlights
  • Calculate duct sizes using airflow (CFM) and velocity (FPM)
  • Supports rectangular and round duct sizing in inches
  • Determine air flow rate in CFM
  • Calculate air velocity in FPM
  • Simple interface for fast on-site calculations
Features
Read full description

Duct Calculator is a focused duct sizing tool for HVAC engineers, designers and installation technicians. Enter what you know and get the duct dimensions, airflow or air velocity you need, without a chart or a slide rule. CALCULATIONS - Duct size: find the required duct dimensions from airflow (CFM) and air velocity (FPM). - Airflow: determine the airflow rate in CFM. - Air velocity: determine velocity in FPM to help verify system performance. DUCT SHAPES - Round ducts - Rectangular ducts - Results shown in inches WHO IT IS FOR - HVAC engineers and designers checking a duct size during design work. - Installation technicians and contractors who need a quick answer on site. - Students learning how airflow, velocity and duct size relate. WHERE IT HELPS - Sizing a new supply or return run from a known CFM. - Checking whether an existing duct keeps velocity within your target. - Comparing a round duct with a rectangular one when space is tight. SIMPLE BY DESIGN A clean interface with only the inputs you need, so you get an answer quickly on the job. Duct Calculator is free to use. An optional one-time upgrade removes ads. Results are intended as a calculation aid. Always confirm designs against applicable codes and project requirements. Download Duct Calculator and size your next duct run. Privacy Policy : https://semiconhub.in/manager/privacy.html Terms and Condition : https://semiconhub.in/manager/tcondition.html

About

FluidsMaster

Features
Read full description

FluidsMaster: Your Precision Hydraulic & Pneumatic Engineering Calculator FluidsMaster is the essential tool for engineers, technicians, and maintenance professionals working with fluid power systems. Whether you are in the field or at the office, perform complex industrial calculations with unmatched speed and precision. Key Features: Cylinder Analysis: Calculate force, area, and speed requirements effortlessly. Pump & Motor Calculations: Determine flow rates, displacement, and performance metrics. Pressure & Flow Tools: Accurate conversions and sizing for pneumatic and hydraulic circuits. Industrial Grade: Built for high-precision B2B applications, ensuring reliable results for your critical engineering tasks. Designed by industry specialists at Rohhman Fluid Systems, FluidsMaster bridges the gap between complex engineering formulas and daily field operations. Streamline your workflow and increase your technical efficiency today. Support: For technical support or feedback, please visit our website at rohhman.com or contact us directly through the app.

Screenshots

Duct Calculator4 screens
FluidsMaster3 screens

Verdict

The call

The clearest difference is in-app purchases: FluidsMaster at none against Duct Calculator's 1. Duct Calculator's advantage is ads (none vs shown). On price, 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

Both are free to download. Duct Calculator sells 1 one-off in-app purchase. FluidsMaster asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Duct Calculator versus FluidsMaster: the parameters behind the verdict, then further details
ParameterDuct CalculatorFluidsMaster
PriceFreeFree
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 10 months—
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.614.0.0 — better
Further details — not scored
Size44 MB42 MB
Age rating4+4+
DeveloperSachinbhai SuraniCAGDAS GUNES

In-app purchases

1 purchases

Duct Calculator

One-time1
  • Lifetime premium$9.99
None

FluidsMaster

No in-app purchases

Questions

Is Duct Calculator free?
Duct Calculator is free to download, with in-app purchases available.
Is FluidsMaster free?
FluidsMaster is free to download, with no in-app purchases.
Do Duct Calculator or FluidsMaster have ads?
FluidsMaster shows ads; Duct Calculator does not.

Other comparisons