EngineCalc vs Hydrostatic Pressure Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EngineCalc
This utility app provides a collection of essential formulas and calculators for powersports and engine tuning. It allows users to perform complex calculations directly on their iPhone, eliminating the need for a laptop or desktop computer.
- Powersports formulas
- Engine tuning calculators
- Actual Volume Flow
- Air Density
- Compression Ratio
- Cylinder Displacement
- Volumetric Efficiency
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EngineCalc is a collection of useful formulas (calculators) for those involved with powersports or engine tuning, in general. Instead of carrying around a laptop or relying on access to a desktop computer with a spreadsheet, you can get the calculations you need right on the handy iPhone in your pocket. Here is a partial list of the "calculators" provided here in EngineCalc: * Actual Volume Flow * Air Density * BHP Loss * Compression Height * Compression Ratio * Corrected BHP * Cylinder Displacement * Horsepower * Mass Flow * Piston Dome Volume * Piston Speed * Rod Length * Simple Horsepower * Theoretical Volume Flow * Torque * Volumetric Efficiency
Hydrostatic Pressure Calc
Quickly calculate hydrostatic pressure at any depth with this physics tool. It offers instant results, supports various units, and displays the relevant formulas for reference. Optimized for ease of use and accuracy.
- Instant hydrostatic pressure calculation
- Supports multiple input units
- Includes hydrostatic pressure formulas
- Results are copyable
- High precision up to 16 decimal places
- Lightweight and optimized
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Hydrostatic Pressure Calculator is a physics/math calculator used to find hydrostatic pressure at a certain depth quickly and easily. Features: - Instant calculation - Results are copyable to other apps - Formulas are included as references - Supports up to 16 decimal places - Supports various units for each input - Lightweight app with a small size, optimized for everyday use Hydrostatic Pressure is the pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity. Hydrostatic pressure increases in proportion to depth measured from the surface because of the increasing weight of fluid exerting downward force from above. Each particle of a liquid is subjected to a gravitational force directed towards the Earth. The deeper it is located, the more particles are above it, resulting in higher fluid pressure. The value of hydrostatic pressure does not depend on the size and shape of the tank, but only on the depth. Therefore, the same hydrostatic pressure will be present in a huge swimming pool and a thin pipe, provided they have the same height. Hydrostatic pressure formula: p = ρ * g * h where: p - hydrostatic pressure ρ - density of fluid g - gravitational acceleration (the average value for Earth is g = 9.80655 m/s²) h - depth Thank you for your support, and feel free to visit nitrio.com for more apps for your iOS devices.
Screenshots
Verdict
The clearest difference is rating: Hydrostatic Pressure Calc at 5.0 against EngineCalc's 2.3. EngineCalc's advantage is update cadence (every 2 months vs every 31 months) and chart position (#184 vs unranked). On ads, in-app purchases, monetization model 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
EngineCalc costs $0.99 and Hydrostatic Pressure Calc $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Hydrostatic Pressure Calc holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
EngineCalc ships an update every 2 months, Hydrostatic Pressure Calc every 31 months. The most recent releases landed on August 14, 2026 and June 25, 2026 respectively.
| Parameter | EngineCalc | Hydrostatic Pressure Calc |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 2.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 months — better | Every 31 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 13 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | iTrinity, Inc. | Tan Chia Ling |
Customer experience
EngineCalc
Hydrostatic Pressure Calc
In-app purchases
EngineCalc
No in-app purchases
Hydrostatic Pressure Calc
No in-app purchases
Questions
Is EngineCalc free?
Is Hydrostatic Pressure Calc free?
Which has better reviews, EngineCalc or Hydrostatic Pressure Calc?
Do EngineCalc or Hydrostatic Pressure Calc have ads?
Which is updated more often, EngineCalc or Hydrostatic Pressure Calc?
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