HolidayStack: PTO Optimizer

WHAT IT DOES
HolidayStack helps you combine your paid time off (PTO / annual leave) with public and bank holidays so you get the longest possible runs of consecutive days off.

- Smart optimizer finds the best breaks for your PTO budget
- "Next big break" suggestions ranked by efficiency (days off per PTO day spent)
- Year-end stacking (Christmas to New Year) handled automatically
- Carry-over PTO modelling with expiry dates
- Full year calendar with public holidays and your booked breaks marked
- Save vacation plans and track them from draft to booked to taken
- Export any plan as a calendar (.ics) file - open it in Google or Apple Calendar, or share it with your partner
- Custom days off (company shutdowns, birthdays, anniversaries)
- Countdown reminders so you book and depart on time
- 15 countries with regional detail: England & Wales, Scotland, Northern Ireland, US federal + states, Germany's 16 states, Canada's provinces, Australia's states, plus France, Netherlands, Italy, Spain, Sweden, Switzerland, Japan, New Zealand, India and South Africa

WHO IT'S FOR
- Employees who want to maximise their annual leave
- Couples coordinating time off together
- Anyone who plans holidays around bank/public holidays
- People who do this in a spreadsheet every January

STANDARD & PRO
The Standard tier lets you view holidays, keep one saved plan, and export one calendar file per month. The Pro unlock adds unlimited plans, unlimited exports, multi-country switching, half-day planning and carry-over modelling, and removes ads.

A NOTE ON DATES
Holiday dates can change or vary locally. Dates are compiled from official government sources and updated automatically when corrections are published. Always confirm with your employer and the official national source before booking time off.

Contact: support@clearstackapps.com

Recent changes:
Maintenance update: under the hood fixes and improvements.