# Orifice Flow vs Hydraulic Cylinder Calc

The clearest difference is rating: Hydraulic Cylinder Calc at 5.0 against Orifice Flow's 4.0. Hydraulic Cylinder Calc also leads on price ($2.99 vs $3.99). Orifice Flow's advantage is update cadence (every 12 months vs every 33 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Orifice Flow costs $3.99 and Hydraulic Cylinder Calc $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hydraulic Cylinder Calc holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Orifice Flow ships an update every 12 months, Hydraulic Cylinder Calc every 33 months. The most recent releases landed on September 9, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Orifice Flow | Hydraulic Cylinder Calc |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/orifice-flow/id479581349/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-cylinder-calc/id1364817143/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 33 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 2 MB |
| Requires iOS | 14.3 | **13** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Tan Chia Ling](https://appshunter.io/developer/321121189) |

## What reviewers say

### Orifice Flow

[App page](https://appshunter.io/ios/app/orifice-flow/id479581349)

Calculate fluid flow rates in pipes and conduits using orifice plates. Supports common industrial fluids and custom fluid properties, with adjustable units and orifice types. Ideal for engineers and designers.

**Highlights:** Fluid flow rate computation, Supports 15 common industrial fluids, Custom fluid property input and saving, Multiple orifice plate types, Adjustable units (SI/USCS), Detailed computation model documentation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Hydraulic Cylinder Calc

[App page](https://appshunter.io/ios/app/hydraulic-cylinder-calc/id1364817143)

Calculate essential hydraulic cylinder parameters like areas, volumes, forces, and velocity. Supports both metric and imperial units with interactive 3D visuals. Results are easily copyable for use in other applications.

**Highlights:** On-the-fly calculations, Piston and Rod side results, Interactive 3D images, Metric and Imperial units, Copy-able results, Ad-free and private

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Orifice Flow free?

Orifice Flow costs $3.99, with no in-app purchases.

### Is Hydraulic Cylinder Calc free?

Hydraulic Cylinder Calc costs $2.99, with no in-app purchases.

### Which has better reviews, Orifice Flow or Hydraulic Cylinder Calc?

Hydraulic Cylinder Calc is rated higher. Orifice Flow averages 4.0 out of 5 from 1 ratings, while Hydraulic Cylinder Calc averages 5.0 from 1 ratings.

### Do Orifice Flow or Hydraulic Cylinder Calc have ads?

Neither Orifice Flow nor Hydraulic Cylinder Calc shows ads.

### Which is updated more often, Orifice Flow or Hydraulic Cylinder Calc?

Orifice Flow ships an update every 12 months, and Hydraulic Cylinder Calc every 33 months. Most recently, Orifice Flow was updated on September 9, 2026 and Hydraulic Cylinder Calc on June 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*