The calendar of shift workers must be different.
People who work when others rest, and rest when others work.
"I Am a Shift Worker Pro" is a completely new version of the "I Am a Shift Worker" series, which has long been with shift workers, built from scratch.
■ This is for you
• Those currently working shift work, such as 3-shift, 2-shift, 4-team 3-shift, 4-team 2-shift, or 3-team 2-shift systems
• Workers in shift-based workplaces, including nurses, firefighters, police officers, production workers, power plants, railways, ports, and security personnel
• Those who want to compare their shift schedule with that of their colleagues on a single screen
• Those who want to automatically receive wake-up alarms before night shifts based on their work schedule
• Those who want to automatically calculate remaining annual leave/vacation days and overtime pay
■ Work Input in Seconds
• Built-in shift patterns for various companies and organizations — Complete your work schedule simply by selecting the company and team
• No need to worry if your company isn't on the list: Directly input the repetition cycle (free combinations like Day-Day-Night-Night-Off-Off)
• Directly input non-repetitive shifts into a blank calendar to manage a whole month at once
• Start a new cycle from the new date when shifts change — Past records are preserved
■ Work Calendar at a Glance
• Customizable text and background colors by shift Distinguish between Night, Day, and Off-duty shifts at once
• Automatic display of Korean public holidays, substitute holidays, lunar calendar dates, and the 24 solar terms
• Monthly swipe, instant year/month navigation, "Today" button, and week (ISO) display
• Light/Dark mode, detailed customization options including background, font size, and color
■ Compare Colleagues' Work Schedules
• Compare multiple shifts side-by-side on a single screen
• Two view modes (Vertical/Horizontal), automatic scrolling of today's position
• Edit colleague's schedule separately — accurate rotation schedules
■ Work Schedule-Linked Alarms
• Alarms linked to the work schedule, such as "20:30 every night shift"
• Alarms automatically move to the next corresponding workday when the shift changes
• Alarm screen above the lock screen, volume and vibration settings per alarm, persists even after rebooting
■ Schedule, Memo, and Photo
• Memos and schedules by date, check off completion, and copy text
• Anniversary management (annual, monthly, Nth day of the week, solar/lunar)
• Attach photos to dates — record work as photos. Supports Monthly View
■ Automatic Calculation of Leave and Overtime
• Aggregation of used and remaining days for annual leave, half-day leave, monthly leave, and compensatory leave
• Estimate this month's allowance by converting overtime records into hours and hourly wages
• Monthly work status statistics (number of days by work type)
■ Home Screen Widgets
• Today's Schedule / Mini 2-Day Shift / Mini 2-Day Shift & Memo (Free)
• Monthly Work Calendar / 3-Day Shift / 7-Day Shift / 7-Day Colleague Shift (Premium)
• Check today's and tomorrow's work schedules on the home screen without opening the app
■ Safe Data, Free Movement
• Full backup/restore of work, memos, and settings + automatic backup (retains the last 10)
• Work Schedule File Sharing — Send your work schedule to colleagues via KakaoTalk or email
• Provides sharing of screenshots and work data
■ Work Data Stored Only on Device
• No sign-up or login required; work data stored only on the device without server transmission
• No proprietary analytics SDK — Network usage is limited to displaying ads and checking subscription status Usage
• Uses only the minimum necessary permissions related to alarms and notifications.
The Premium subscription (₩1,900 per month, auto-renewing) is an optional feature that removes ads and provides premium widgets.
Even without a subscription, you can use all core features for free, including the work calendar, alarms, colleague schedules, statistics, backups, and sharing.
You are a Pro at managing shifts smartly.
Contact: onnaruteam@gmail.com
Work calendar for shift workers (including nurses and hospital staff). Work schedules, alarms, colleagues, sharing, widgets, schedule lists, and even overtime—all in one app.