# Orifice Flow vs OrificeQ Pro

The clearest difference is price: OrificeQ Pro at Free against Orifice Flow's $3.99. Orifice Flow's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

OrificeQ Pro is free to download; Orifice Flow costs $3.99 up front. OrificeQ Pro sells 1 one-off in-app purchase. Orifice Flow asks for nothing beyond the download.

## The numbers

| Metric | Orifice Flow | OrificeQ Pro |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/orifice-flow/id479581349/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 55 MB |
| Requires iOS | **14.3** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Enermatic Colombia S.A.S](https://appshunter.io/developer/1895397902) |

## 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


### OrificeQ Pro

[App page](https://appshunter.io/ios/app/orificeq-pro/id6763612452)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OrificeQ Pro Premium | $79.99 | one-time |


## Frequently asked questions

### Is Orifice Flow free?

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

### Is OrificeQ Pro free?

OrificeQ Pro is free to download, with in-app purchases available.

### Do Orifice Flow or OrificeQ Pro have ads?

Neither Orifice Flow nor OrificeQ Pro shows ads.

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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.*