Shift Cycle

A shift rotation calendar that stays on your phone

View the Project on GitHub anilsancarr-web/shiftcycle-site

Shift Cycle

A shift rotation calendar. Set your pattern once, see the year.

Support

Questions, bug reports, feature requests:

anilsancarr@gmail.com

I reply to every message, usually within two working days.

If you are reporting something wrong with your calendar, it helps enormously to say which rotation you picked and which day looks wrong — that is almost always enough to reproduce it.

About the app

Pick a rotation — four on four off, 2-2-3, twelve-hour days and nights, three rotating shifts — or build your own cycle of any length for a hospital rota or an irregular pattern. Tell it which day of the cycle you are on today and the whole year fills in.

It works offline, stores everything on your device, and collects nothing about you. There is no account and no server.

Common questions

Can I change one day without breaking the rotation? Yes. Tap the day, pick a different shift, add a note if you want. The rotation carries on around it.

My shift times are wrong. The presets can only guess. Settings → Shift types lets you set the real start time and length for each one.

The week starts on the wrong day. The app reads that from your phone’s own calendar settings rather than assuming. If it looks wrong, check your iOS Language & Region settings first.

What happens after the 14-day trial? The widget, the hours and pay screen, and export lock. The calendar itself stays free forever — your rotations, your months and your edits all keep working, and nothing you have entered is taken away.

I bought lifetime. Will that change? No. See the Terms of Use; it is written down there deliberately.