# LeakTracker Pro vs Orifice Flow Rate Calculator

The clearest difference is review sentiment: Orifice Flow Rate Calculator at 100% against LeakTracker Pro's 50%. Orifice Flow Rate Calculator also leads on rating (4.9 vs 4.0) and ratings volume (113 vs 8). LeakTracker Pro's advantage is update cadence (every 5 weeks 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 4.0. That said, the two scores are not equally well evidenced: Orifice Flow Rate Calculator has 113 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 50% of LeakTracker Pro's written reviews are positive against 100% of Orifice Flow Rate Calculator's.

LeakTracker Pro ships an update every 5 weeks, Orifice Flow Rate Calculator every 6 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | LeakTracker Pro | Orifice Flow Rate Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8 ratings)](https://appshunter.io/ios/app/leaktracker-pro/id1195225812/reviews) | **[4.9 (113 ratings)](https://appshunter.io/ios/app/orifice-flow-rate-calculator/id1439701941/reviews)** |
| Number of ratings | 8 | **113** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 18 MB | 2 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trihydro Corporation](https://appshunter.io/developer/920601995) | [R.L. Laughlin & Company, Inc.](https://appshunter.io/developer/1438670681) |

## What reviewers say

### LeakTracker Pro

[App page](https://appshunter.io/ios/app/leaktracker-pro/id1195225812)

This application helps oil and gas companies survey, track, and report GHG and VOC emissions data for EPA compliance. It automates data collection, offers real-time alerts, and facilitates efficient leak management and repair scheduling.

**Highlights:** Automated emissions data collection, Leak tracking and management, EPA compliance reporting, Real-time user alerts, Efficient workflow and data analysis, Scheduling assistance for repairs

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is LeakTracker Pro free?

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

### Is Orifice Flow Rate Calculator free?

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

### Which has better reviews, LeakTracker Pro or Orifice Flow Rate Calculator?

Orifice Flow Rate Calculator is rated higher. LeakTracker Pro averages 4.0 out of 5 from 8 ratings, while Orifice Flow Rate Calculator averages 4.9 from 113 ratings.

### Do LeakTracker Pro or Orifice Flow Rate Calculator have ads?

Neither LeakTracker Pro nor Orifice Flow Rate Calculator shows ads.

### Which is updated more often, LeakTracker Pro or Orifice Flow Rate Calculator?

LeakTracker Pro ships an update every 5 weeks, and Orifice Flow Rate Calculator every 6 months. Most recently, LeakTracker Pro was updated on October 24, 2026 and Orifice Flow Rate Calculator on October 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.*