Derrick: Oilfield Rotation
Hitch calendar & crew change
About
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.
What's New in Derrick
1.6.1
November 3, 2026
This update refreshes our App Store listing. Derrick works exactly as in 1.6.0, including the pattern builder for any rotation (free) and the 12-month calendar export (Pro). If Derrick helps you plan your hitch, a rating helps other crews find it.
MoreSubscriptions & In-App Purchases
$29.99
Derrick Pro — Lifetime
Plan life around your hitch + track payday & overtime.
Developer apps
FAQ
What is Derrick: Oilfield Rotation?
Derrick is a productivity app designed for oilfield workers to accurately track their work rotations, days on and off, and crew changes. It offers features like customizable schedules, crew sharing, and personal event planning.
How does Derrick handle custom rotations?
Derrick allows users to build their own rotation patterns by arranging days on, days off, and night shifts in any order. You can preview the first four weeks before saving your custom pattern.
Can I share my schedule with my crew using Derrick?
Yes, Derrick's Crew Pass feature lets you send your rotation to your crew or family as a code or QR code. They can then import your entire schedule with a single tap, even offline.
What are the benefits of Derrick Pro?
Derrick Pro, a one-time purchase, offers a full-year calendar view, the ability to plan personal events around your hitch, pay estimation, a detailed hitch log export, unlimited ticket storage, and advanced widgets.
Does Derrick have ads?
Yes, the free version of Derrick contains advertisements. The Derrick Pro version, which is a one-time purchase, is ad-free.
How accurate is Derrick's rotation tracking?
Derrick is designed to prevent calendar drift and off-by-a-day errors, ensuring your ON and OFF days are correctly displayed for years without manual adjustments.
What devices does Derrick support?
Derrick is currently supported on iPhone devices. It is designed to work offline, making it suitable for use on rigs or at sea.
How often is Derrick updated?
The latest version of Derrick is 1.6.1, which was last updated on November 3, 2026. Updates typically include new features and improvements based on user feedback.
