CatDays A cat to count down the days that matter.
A minimalist countdown & counter app — a cute cat keeps you company through every day you care about.
Why CatDays
We perfect the essentials and leave the rest to the cats.
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Countdown & count-up
Count down to a future date or count the days since — your moments at a glance.
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Cat companions
Pair a cat with each countdown and unlock more fluffy friends.
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Home Screen widget
Pin the day you care about most right to your Home Screen.
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Privacy first
Your data lives on your device and your iCloud — never on our servers.
A look inside the app
A few taps to start a countdown for the day you care about.
Collect your countdown companions
Pair a cat with every countdown — pick the one that suits the day.
Coco
A tsundere calico who won’t admit she missed you.
Tofu
A dapper tuxedo who keeps you on track.
Ash
A fluffy grey who naps through deadlines.
Milo
A curious grey tabby, always by your side.
Pumpkin
A plump orange waiting for the big day.
Pin it to your Home Screen
Small and Medium sizes put the day you care about — and its cat — front and center.
- Two sizes
- Small shows one countdown; Medium shows your pinned day with its cat.
- Tap to open
- Tap a widget to jump straight into that countdown.
- Pin a favorite
- Pin one main countdown and the widget shows it by default.
A countdown for everything you care about
Start in one tap with built-in templates — count down to a date or up from one.
Birthday
Exam
Build a habit
Anniversary
Weekly
Custom
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Your days stay yours
Every countdown lives on your device and your personal iCloud, synced across your own devices through Apple’s encryption — never through our servers.
Frequently asked questions
Is it free?
The app is a free download and comes with Coco to get you started. Want more cats? Unlock them anytime — NT$60 each, or NT$99 for the classic four.
Does my data sync?
Yes. It syncs across your own devices through your personal iCloud — our servers never touch your data.
Which devices are supported?
iPhone on iOS 17.6 or later, with Home Screen widgets. There are no iPad- or Mac-specific layouts yet.
How do I add a countdown to my Home Screen?
Touch and hold the Home Screen → tap “+” in the top-left → search for CatDays → add the Small or Medium size.
