# Orifice Flow vs FloPro

The clearest difference is price: FloPro at Free against Orifice Flow's $3.99. FloPro also leads on rating (5.0 vs 4.0) and update cadence (every 3 months vs every 12 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

FloPro is free to download; Orifice Flow costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FloPro 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, FloPro every 3 months. The most recent releases landed on September 9, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Orifice Flow | FloPro |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/orifice-flow/id479581349/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flopro-md/id1437827733/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 3 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 44 MB |
| Requires iOS | 14.3 | **10.3** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Watts Water Technologies, Inc](https://appshunter.io/developer/844447908) |

## 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


### FloPro

[App page](https://appshunter.io/ios/app/flopro-md/id1437827733)

This tool helps diagnose gas-related issues by measuring gas pressure and flow, converting it to heat output. It provides data to ensure appliances deliver expected performance, simplifying troubleshooting for technicians and installers.

**Highlights:** Measures gas pressure (psi), Measures gas flow (CFH), Converts flow to BTU/hr heat output, Bluetooth connectivity to smart devices, Generates CSV data files, Email and print data reports

**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 FloPro free?

FloPro is free to download, with no in-app purchases.

### Which has better reviews, Orifice Flow or FloPro?

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

### Do Orifice Flow or FloPro have ads?

Neither Orifice Flow nor FloPro shows ads.

### Which is updated more often, Orifice Flow or FloPro?

Orifice Flow ships an update every 12 months, and FloPro every 3 months. Most recently, Orifice Flow was updated on September 9, 2026 and FloPro on July 5, 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.*