Big Day! - Birthday Reminder

Big Day! – Never miss a birthday again

Big Day! helps you remember the moments that matter — birthdays, anniversaries, and important dates — with a clear countdown and reliable reminders.

Never scramble at the last minute. Add the people you care about, choose how you want to be reminded, and let Big Day! keep every celebration on your radar.

What you can do • Save birthdays, anniversaries, and special events • Countdown to the next big day in days, hours, minutes, and seconds • Choose solar, lunar, or both reminder styles • Get local notifications on the day that matters • Browse everyone in one clean list with search • Import and export your data as CSV • Switch between English and Chinese

Built for real life Whether you celebrate by the solar calendar, the lunar calendar, or both, Big Day! keeps the next date clear and easy to check. Open the app, see what’s coming up, and show up on time — every time.

Simple. Focused. Ready for joy.