# Orifice Flow Rate Calculator vs DPC Tools

The clearest difference is review sentiment: Orifice Flow Rate Calculator at 100% against DPC Tools's 0%. Orifice Flow Rate Calculator also leads on rating (4.9 vs 3.4) and ratings volume (98 vs 5). DPC Tools's advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Orifice Flow Rate Calculator holds the better App Store score, 4.9 against 3.4. That said, the two scores are not equally well evidenced: Orifice Flow Rate Calculator has 98 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Orifice Flow Rate Calculator's written reviews are positive against 0% of DPC Tools's.

Orifice Flow Rate Calculator ships an update every 6 months, DPC Tools every 2 months. The most recent releases landed on September 7, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Orifice Flow Rate Calculator | DPC Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (98 ratings)](https://appshunter.io/ios/app/orifice-flow-rate-calculator/id1439701941/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/dpc-tools/id1481236443/reviews) |
| Number of ratings | **98** | 5 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 2 MB | 15 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [R.L. Laughlin & Company, Inc.](https://appshunter.io/developer/1438670681) | [Diamond Plastics Corporation](https://appshunter.io/developer/659014057) |

## What reviewers say

### Orifice Flow Rate Calculator

[App page](https://appshunter.io/ios/app/orifice-flow-rate-calculator/id1439701941)

Easily calculate natural gas orifice flow rates using the AGA 3 standard. This utility app allows users to determine MCF production for a given duration, save calculations, and export data to CSV. It functions offline, requiring no cell service.

**Highlights:** Orifice MCF Calculator, Rotary (Direct) MCF Calculator, Save all calculations, View saved inputs and calculations, Export calculations to CSV

**Features:** macOS Compatibility

**In-app purchases:** none


### DPC Tools

[App page](https://appshunter.io/ios/app/dpc-tools/id1481236443)

This app provides a suite of tools for designing and building projects using PVC pipe. It calculates pipe buoyancy, external load deflection, flow rates, pricing, and truckload capacity. Results can be printed for easy reference.

**Highlights:** Pipe Buoyancy Calculator, External Load Design, Flow Calculator, Pricing Calculator, Representative Locator, Truckload Calculator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Orifice Flow Rate Calculator free?

Orifice Flow Rate Calculator is free to download, with no in-app purchases.

### Is DPC Tools free?

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

### Which has better reviews, Orifice Flow Rate Calculator or DPC Tools?

Orifice Flow Rate Calculator is rated higher. Orifice Flow Rate Calculator averages 4.9 out of 5 from 98 ratings, while DPC Tools averages 3.4 from 5 ratings.

### Do Orifice Flow Rate Calculator or DPC Tools have ads?

Neither Orifice Flow Rate Calculator nor DPC Tools shows ads.

### Which is updated more often, Orifice Flow Rate Calculator or DPC Tools?

Orifice Flow Rate Calculator ships an update every 6 months, and DPC Tools every 2 months. Most recently, Orifice Flow Rate Calculator was updated on September 7, 2026 and DPC Tools on September 21, 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.*