SuiSui

Count the days that matter.

Download on the App Store Get it on Google Play

Free · iPhone, iPad, Mac and Android

The days go by quickly. The few worth remembering shouldn't slip past with them.

Your 1000th day together, how old the baby is in days, how long until the exam, when the next Lunar New Year lands — SuiSui keeps those days where you'll see them, and rolls every count over at midnight.

A look inside

The SuiSui home screen, with a pinned day counting up and a list of birthdays, exams and holidays below it — Every day you keep, in the groups you gave them

A SuiSui day detail screen on a pink theme: Together, already 1,528 days, above the date May 20 2022 and its lunar equivalent — Open any day — Gregorian and lunar both

Counting days, both ways

Count down

Exams, trips, payday, the next holiday — see exactly how many days are left.

Count up

Days together, the baby's age, days at the new job — counted from that day to today.

Lunar calendar

Traditional birthdays, Lunar New Year and Mid-Autumn convert automatically. No calendar lookups.

Repeats

Set a day to repeat yearly or monthly and it rolls to the next occurrence on its own.

Widgets

Small, medium and large Home Screen widgets plus Lock Screen widgets. On Mac it lives in the menu bar.

Share cards

Turn any day into a card worth posting, in one tap.

Simple, quiet, respectful

No account, no sign-up — open it and start
No ads and no notifications you didn't ask for
No third-party analytics, attribution or tracking SDKs
Every day you record stays on your own device

Read the full privacy policy.

SuiSui Pro

One purchase, yours for good — not a subscription.

The free version holds five days. Pro removes the limit, unlocks all 12 themes (Starry Night, Twilight Purple, Radiant Gold and more) and adds reminders 1, 3, 7 or 30 days ahead. It's a Universal Purchase across iPhone, iPad and Mac: buy it on one, tap Restore Purchases on the others.