# Driller's Method vs CPC Utility

The clearest difference is review sentiment: CPC Utility at 100% against Driller's Method's 0%. CPC Utility also leads on price (Free vs $19.99) and iOS requirement (13.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

CPC Utility is free to download; Driller's Method costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Driller's Method ships an update every 16 months, CPC Utility every 12 months. The most recent releases landed on September 2, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Driller's Method | CPC Utility |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cpc-utility/id1502728707/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 12 months** |
| Monetization | Paid | **Free** |
| Size | 19 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Thru Tubing Solutions Inc.](https://appshunter.io/developer/1502728706) |

## What reviewers say

### Driller's Method

[App page](https://appshunter.io/ios/app/drillers-method/id1067011800)

This application assists with oil well control calculations using the Driller's Method, particularly for kick occurrences on floating and landing rigs. It's a tool for oilfield professionals and students to understand and apply these essential calculations.

**Highlights:** Driller's Method calculations, Kick occurrence management, Floating platform support, Landing rig application, Kill sheet data import, Educational tool

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

**In-app purchases:** none


### CPC Utility

[App page](https://appshunter.io/ios/app/cpc-utility/id1502728707)

This utility app provides instant contact with well control services for emergencies. It also includes helpful calculators and lookup tables for casing, flange, coiled tubing, and nitrogen volume.

**Highlights:** 24/7 Well Control callout, Casing information lookup, Flange data, Coiled tubing calculator, Nitrogen volume calculator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Driller's Method free?

Driller's Method costs $19.99, with no in-app purchases.

### Is CPC Utility free?

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

### Do Driller's Method or CPC Utility have ads?

Neither Driller's Method nor CPC Utility shows ads.

### Which is updated more often, Driller's Method or CPC Utility?

Driller's Method ships an update every 16 months, and CPC Utility every 12 months. Most recently, Driller's Method was updated on September 2, 2026 and CPC Utility on June 4, 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.*