Cat Letter
A quiet home for your days
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Some days are worth keeping.
A birthday. An anniversary. The day you moved in. Or just a date you can't quite let go of — you're not even sure why.
Cat Letter is a quiet app for those days. You place them into a little home. Mantou, a small pixel cat, watches over them. When a day draws near, Mantou delivers a letter.
Waiting becomes something gentle.
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Place a day
Any date — past memories, future hopes, today's rituals.
Type: Birthday · Anniversary · Journey · New Home · Custom
Choose an object: envelope · cake · calendar · frame · flower · star · heart
Mantou does three things
Keeps watch: after you save, Mantou stays with your day in the little home.
Delivers: when the day arrives, Mantou brings the letter to you.
Stamps: for past days, a paw print is sealed on the memory postcard.
Countdown & Memory
Future days: shows how long until arrival (tomorrow · three days · still far away…)
On the day: Mantou picks up the letter and delivers it.
Past days: become memory postcards with a paw stamp, kept in your little home forever.
Fully private · Local only
Everything stays on your device. No account, no internet, no ads, no notifications you didn't ask for.
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Mantou is here, waiting for your first day.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The Time Machine is here
· Look back on days gone by: open the Time Machine to reopen letters that have already arrived, and turn the memories you want to hold onto into postcards.
· Share a day: make a quiet little card, ready for Instagram or wherever you like.
· A few small fixes to color and feel, to make home a little cozier.
Thank you for keeping your days here.
The developer, LUOJING NIE, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LUOJING NIE
- Size
- 4 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Stargazer