Comparison

Fluid Mechanics Calc vs Torricelli

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

Head to head
About

Fluid Mechanics Calc

This utility app provides a comprehensive calculator for fluid mechanics, civil, and structural engineering parameters. It offers over 130 formulas and 360 calculation methods, supporting seamless unit system switching for analysis, design, and operation of fluid-related systems.

Highlights
  • 130+ fluid mechanics formulas
  • 360+ calculation methods
  • Unit system conversion (metric/US)
  • Favorite formula marking
  • High mathematical precision
  • Seamless unit switching
Features
Read full description

The app is useful for the fluid thinkers. This app covers a wide variety of topics and helps in analysis, design, maintenance and operation of fluid related systems. The calculator will provide results for different fluid mechanics, civil, structural, pipe flow and engineering parameters. It is useful in the fields of automotive, aviation, geology, space, biological applications, petroleum, marine systems and cylinder manufacturing. This app comes handy to students, engineers, analysts, researchers and the curious. Here are the useful features of this app LISTS 130+ FORMULAE Memorizing hundreds of formula is not the way to go when it comes to learning fluid mechanics 360+ METHODS OF CALCULATION This calculator allows a user to change subject of formula based on the variable he/she wants to calculate. The formula applied is displayed in the app CALCULATE FOR ANSWERS Key in the numbers, set units and see results. Switch upto three conversion units. The app accepts input and provides results to the highest mathematical precision MARK FAVORITES Easy markups for easy recall HOP SEAMLESSLY BETWEEN BETWEEN METRIC AND US (INCH) UNIT SYSTEMS The app maintains separate functioning of these unit systems. The app has a predefined library of units designated to each of them It would be a good idea to kill the app and re-open it once in a while with the internet. We constantly strive to update, increase and enrich the content of the app. Go fluid with this app in your pocket!

About

Torricelli

Features
Read full description

Torricelli's Theorem Calculator Based on Torricelli's Law, also known as Torricelli's Theorem, this calculator is a tool in fluid dynamics that relates the speed of fluid flowing out of an opening to the height of the fluid above the opening. Features: • Input parameters such as Tank Height, Tank Radius, Spigot Height, and Spigot Radius. • Simulate water flowing out from the tank in 3D. • Simulate the volume of water remaining over time. • Simulate water pressure over time. • Simulate water speed at the spigot over time. • Simulate water distance over time. • Simulate the farthest water height remaining over time. • Simulate the time needed for the water to flow out until reaching the spigot height. • Works seamlessly on both iPhone and iPad. • Lightweight, compact app optimized for everyday use. • Ad-free and built with privacy in mind. Torricelli's Theorem states that if a tank contains liquid and is open to the atmosphere at its top, and there is an orifice in the tank at a height h below the top of the liquid, then the speed of outflow from the orifice is √2gh, provided the liquid obeys Bernoulli's equation and the top of the liquid can be regarded as motionless. Torricelli's Theorem Formula: v = √2 * g * h where: v : Fluid Speed at the Orifice, in meters per second (m/s) h : Height of the Orifice from the Top, in meters (m) g : The acceleration due to gravity, 9.80665 m/s² Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Fluid Mechanics Calc4 screens
Torricelli4 screens

Verdict

The call

The clearest difference is price: Fluid Mechanics Calc at Free against Torricelli's $2.99. Torricelli's advantage is iOS requirement (13 vs 15.6). On update cadence, ads, in-app purchases and device support 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

Fluid Mechanics Calc is free to download; Torricelli costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fluid Mechanics Calc ships an update every 22 months, Torricelli every 28 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 7 level
Fluid Mechanics Calc versus Torricelli: the parameters behind the verdict, then further details
ParameterFluid Mechanics CalcTorricelli
PriceFree — better$2.99
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 22 months — betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613 — better
Further details — not scored
Size108 MB1 MB
Age rating4+4+
DeveloperTrelleborg Sealing SolutionsHeng Jia Liang

In-app purchases

None

Fluid Mechanics Calc

No in-app purchases

None

Torricelli

No in-app purchases

Questions

Is Fluid Mechanics Calc free?
Fluid Mechanics Calc is free to download, with no in-app purchases.
Is Torricelli free?
Torricelli costs $2.99, with no in-app purchases.
Do Fluid Mechanics Calc or Torricelli have ads?
Neither Fluid Mechanics Calc nor Torricelli shows ads.
Which is updated more often, Fluid Mechanics Calc or Torricelli?
Fluid Mechanics Calc ships an update every 22 months, and Torricelli every 28 months. Most recently, Fluid Mechanics Calc was updated on October 12, 2026 and Torricelli on October 16, 2026.

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