Derrick: Oilfield Rotation
iOS app by Vytautas Jazbutis. Productivity · Vytautas Jazbutis
- Store rating
- 4.74 / 5
- Store rating count
- 19
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.4.1
- Listing last refreshed
- 2026-09-09
View the original store listing
Store description excerpt
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 — your year on one page, now built for paper. The printable PDF prints on a light background: easy on toner, and your ON and OFF days stay clear in color or black and white. One year, one page — not 12 scattered months. 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, works 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 • Works offline on the rig or at sea. No account, no sign-up. 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. Crew change shouldn't be this hard to track. Now it isn't.
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