# Oilfield Calculator Pro vs Patch Utilities

The clearest difference is price: Patch Utilities at $1.99 against Oilfield Calculator Pro's $9.99. Patch Utilities also leads on update cadence (fortnightly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Oilfield Calculator Pro costs $9.99 and Patch Utilities $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oilfield Calculator Pro ships an update every 4 months, Patch Utilities fortnightly. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Oilfield Calculator Pro | Patch Utilities |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/patch-utilities/id6504952483/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Paid |
| Size | 23 MB | 27 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Suleiman](https://appshunter.io/developer/1573285691) | [Shawn Revels](https://appshunter.io/developer/1429958152) |

## What reviewers say

### Oilfield Calculator Pro

[App page](https://appshunter.io/ios/app/oilfield-calculator-pro/id1573285689)

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

**In-app purchases:** none


### Patch Utilities

[App page](https://appshunter.io/ios/app/patch-utilities/id6504952483)

This app provides oilfield professionals with a suite of tools for unit conversions, complex calculations, tank tracking, and documentation. It includes a terminology glossary, quiz section, and downloadable JHA sheets to enhance efficiency and safety on-site or in the office.

**Highlights:** Oilfield terminology quiz with leaderboards, Specialized unit conversion tools, Advanced calculators for oilfield operations, Tank water level tracking, Operational notes and documentation, Comprehensive oilfield handbook, Customizable Job Hazard Analysis (JHA) sheets

**In-app purchases:** none


## Frequently asked questions

### Is Oilfield Calculator Pro free?

Oilfield Calculator Pro costs $9.99, with no in-app purchases.

### Is Patch Utilities free?

Patch Utilities costs $1.99, with no in-app purchases.

### Do Oilfield Calculator Pro or Patch Utilities have ads?

Neither Oilfield Calculator Pro nor Patch Utilities shows ads.

### Which is updated more often, Oilfield Calculator Pro or Patch Utilities?

Oilfield Calculator Pro ships an update every 4 months, and Patch Utilities fortnightly. Most recently, Oilfield Calculator Pro was updated on October 25, 2026 and Patch Utilities on October 22, 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.*