Thomas Lewiner

καιρός · the moment  ·  the calendar that notices when today is beautiful

Kairosophe.

A calendar usually tells you what you have to do. Kairosophe tells you what's worth celebrating. Made with my daughter to notice the good days.

Privacy & support · Last updated 28 July 2026.

Download on the App Store ↗

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the app

A calendar of reasons to celebrate.

about

Kairosophe is a calendar of reasons to celebrate. A calendar usually tells you what you have to do; this one tells you what's worth celebrating.

My daughter and I made it to notice the good days, starting with the ones that are personal to you. Add your own dates (birthdays, anniversaries, the day someone arrived or something began) and Kairosophe surfaces every reason they come back around: a year, a round 1,000 days, a pretty number, the same date in another calendar. Around them it also notices the wider patterns: new years from many traditions, holidays, name days, full moons and solstices.

It's the ·sophe family's way of adding a little wisdom (sophía) to specific days, so the meaningful ones don't slip past unnoticed.

The same app runs on iPhone, iPad, Mac (in the menu bar) and Apple Watch, with widgets and complications showing the next reason to celebrate. Browse month by month, or just glance. It can import from and export to the iOS calendar, and save personal dates to CSV for faster editing. Ask Siri to add a date or tell you what's coming up, right from your iPhone or Apple Watch.

The month, with every reason to celebrate Add your own personal dates Share a day's reasons as a pretty card On this day: past anniversaries at a glance The next reason to celebrate, on your Home Screen
our promise

No tracking. No data collection. No ads. No accounts. No third-party SDKs. No analytics. Just time and words.

The apps store your preferences in Apple's own settings storage on your device, and, only if you sign in to iCloud, sync them to your other devices through Apple's iCloud Key-Value Store. None of that data ever reaches a server we run.

privacy

What Kairosophe does, and does not, do with your data.

Data collected
none.
Networkdefault behaviour
none. The app ships with a built-in snapshot of public-holiday names for 12 countries × 4 years and uses that entirely offline.
Networkopt-in only
If you add a country code in Settings and tap "Update holiday calendar from the internet", the app requests that country's holidays from the open date.nager.at service. Only the year and 2-letter country code are sent. We do not send anything about you. No account, no key. Read their privacy statement at date.nager.at/About.
Networkopt-in only
If you subscribe to an external calendar (an iCal/ICS link you paste — a school calendar, a club), the app fetches that link, and only when you tap Add or Refresh — never automatically. Nothing about you is sent; the events are cached on your device so the day card keeps working offline.
Stored on device
Personal dates you add, enabled holiday and saint sources, cached events from calendars you subscribe to, look-ahead range, optional photo thumbnails for personal dates (kept locally only).
iCloud sync(optional)
Your preferences and personal dates — including their small photo thumbnails — mirror to your other devices via Apple's iCloud Key-Value Store. We can't read them.
Contacts(optional)
If you tap "Import from Contacts…", iOS asks your permission once, then you pick exactly which contacts' birthdays to copy in. Nothing is fetched until you tap that button, and nothing is ever written back to your Contacts, stored beyond your device, tracked, or transmitted.
Sharing your datesopt-in only
You can hand a family member a set of your personal dates as a QR code or a kairosophe:// link — a compressed, on-device encoding of just the dates you choose, with no server involved. You send it however you like (AirDrop, Messages, a printed code); the recipient's Kairosophe decodes it locally on import. We never see or relay it.
Notifications(optional)
If you turn on reminders for a personal date, the app schedules local notifications on your iPhone. They are scheduled by iOS on your device and don't go through a server.
Siri & Shortcuts(optional)
"Add a date" and "What are my Kairosophe days" run as on-device App Intents against the same local personal-dates store the rest of the app uses. Siri's speech processing is Apple's own; nothing is sent to us or anyone else.
support

Get in touch.

email

Bug reports, feature requests, or a kind word, write to .

common to all ·sophe apps

Applies across the family.

Children's privacy
These apps are not directed at children under 13, and we knowingly collect no information from anyone, of any age. If you are a parent and want to use them with your kids, that's exactly how they were built. The apps store their data only on the device.
Changes to this policy
If we change anything, we will update this page and the date at the top. The apps do not "phone home" to fetch a new policy.
Contact
For everything (privacy questions, support, or a hello) write to .