# Drilling Hydraulics (Basic) vs Derrick

The clearest difference is price: Derrick at Free against Drilling Hydraulics (Basic)'s $4.99. Derrick also leads on update cadence (every 3 weeks vs every 14 months). Drilling Hydraulics (Basic)'s advantage is in-app purchases (none vs 1) and ads (none vs shown).

Derrick is free to download; Drilling Hydraulics (Basic) costs $4.99 up front. Derrick sells 1 one-off in-app purchase. Drilling Hydraulics (Basic) asks for nothing beyond the download.

Drilling Hydraulics (Basic) ships an update every 14 months, Derrick every 3 weeks. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Drilling Hydraulics (Basic) | Derrick |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.8 (33 ratings)](https://appshunter.io/ios/app/derrick-oilfield-rotation/id6780036699/reviews)** |
| Number of ratings | — | **33** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 15 MB |
| Requires iOS | **10.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Vytautas Jazbutis](https://appshunter.io/developer/1829284015) |

## What reviewers say

### Drilling Hydraulics (Basic)

[App page](https://appshunter.io/ios/app/drilling-hydraulics-basic/id673992115)

**Features:** macOS Compatibility

**In-app purchases:** none


### Derrick

[App page](https://appshunter.io/ios/app/derrick-oilfield-rotation/id6780036699)

This app helps oilfield workers track their complex work rotations and time off. It offers a customizable calendar, crew sharing, and tools for planning personal events and estimating pay. Users can also store important tickets and export their schedules.

**Highlights:** Customizable rotation patterns, Crew sharing via code/QR, Home/lock screen widgets, Ticket wallet with expiry reminders, Pay estimation, Hitch log with export, Export to calendar

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Derrick Pro — Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Drilling Hydraulics (Basic) free?

Drilling Hydraulics (Basic) costs $4.99, with no in-app purchases.

### Is Derrick free?

Derrick is free to download, with in-app purchases available.

### Do Drilling Hydraulics (Basic) or Derrick have ads?

Derrick shows ads; Drilling Hydraulics (Basic) does not.

### Which is updated more often, Drilling Hydraulics (Basic) or Derrick?

Drilling Hydraulics (Basic) ships an update every 14 months, and Derrick every 3 weeks. Most recently, Drilling Hydraulics (Basic) was updated on November 11, 2026 and Derrick on November 10, 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.*