Derrick: Oilfield Rotation

Hitch calendar & crew change

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Keep your rotation and add your spouse or crewmate's with one Crew Pass — see the next day you're both home. Offline, private, pay once, no subscription. Derrick is the rotation calendar built for oilfield hands — and it actually keeps your hitch straight. Pick your rotation once (14/14, 14/7, 7/7, 21/21, 28/28, or a custom on/off), set the day your hitch starts, and Derrick paints your ON and OFF days correctly — for years. No drift. No "off by a day." No blank calendar when the new year rolls over. That sounds basic. It's the thing every other oilfield calendar gets wrong. NEW — Crew Pass. Send your rotation to your crew or your spouse as a code and a QR. They scan or paste it and import your whole schedule in one tap — no re-typing dates, no getting a day wrong. Free, offline, no account. FREE • Big, glanceable countdown — HOME IN __ DAYS / BACK IN __ DAYS • Today at a glance — "On hitch · Day 9 of 14" • Full month calendar with your ON/OFF days in color — scroll years ahead or back • Agenda of your upcoming hitches and time off, with exact dates • Crew Pass — share your rotation as a code/QR; your crew imports it in one tap • Home Screen & Lock Screen widgets • Crew-change reminders the evening before • Day & night shifts • 100% offline. No account, no sign-up, nothing leaves your phone. DERRICK PRO — one-time unlock (no subscription) • Whole year on one page — export a clean, printable PDF (one year per page, not 12 separate months) • Plan your life around your hitch — add birthdays, weddings, hunting season, the kids' games, and see instantly whether you'll be home or working • Track your money — pay, per-diem, days worked & overtime, in your currency (USD, CAD, GBP, AUD, NOK, EUR & more) Buy Pro once and keep it. No subscriptions. No ads. No data collection. Crew change shouldn't be this hard to track. Now it isn't.

Ratings & Reviews

  • 5.0
    out of 5
    3 Ratings

What's new in 1.3 • My Crew keeps your rotation and adds one spouse or crewmate from their Crew Pass — no more replacing your own schedule. • See both schedules together and the next day you're both home, all offline. • Free, private, and fully offline — no account or subscription.

Version 1.3.0

The developer, Vytautas Jazbutis, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Vytautas Jazbutis
    Size
    • 4.2 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Evelaina
  • Developer Website
  • Privacy Policy
  • License Agreement

    • More by Vytautas Jazbutis

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