Days Mark · Privacy Policy
Days Mark is an app for keeping anniversaries, birthdays and other dates that matter. Our principle is simple: what you record belongs to you. We do not collect, upload or sell any personal data, and we run no server that receives user data.
1. What we don't collect
- No account: there is no sign-up or sign-in, and we never ask for your name, email or phone number.
- No analytics or ads: the app contains no analytics, advertising or crash-reporting SDKs, does not use the advertising identifier (IDFA), and does not track you across apps.
- No developer server: the app sends nothing to any server run by the developer.
2. The days you record
The days you add — title, date, Gregorian or lunar calendar, repeat rule, note, tags, icon colour and reminder settings — are stored on your device.
If iCloud sync is enabled in the app and your device is signed in to iCloud, this content is stored in the private iCloud database of your own Apple Account so it can sync between your devices. Apple holds that data under its own privacy policy; the developer cannot see or access it.
3. Preferences on your device
Preferences such as how lunar dates are written are stored locally (UserDefaults), read only by the app, and never leave the device.
4. Reminders
Reminders are local notifications scheduled on your device; no server is involved. The app sends notifications only with your permission, and you can turn them off at any time in Settings → Notifications → Days Mark.
5. Trial and purchase
The 90-day trial and the full version are both handled by the Apple App Store. Payment details are processed only by Apple and are never available to us; the app reads the purchase status provided by the App Store, on your device, to decide what is unlocked.
6. Deleting your data
- Deleting a day in the app removes that record from your device.
- Deleting the app on iPhone or iPad removes all of its data from that device. On a Mac, moving the app to the Trash does not remove its data; also delete the folder ~/Library/Containers/app.yifang.zhiri.
- If your days were synced to iCloud, you can delete the app's data in Settings → [your name] → iCloud → Manage Storage.
7. Children's privacy
The app collects no personal information from anyone, including children under 13.
8. Changes to this policy
If this policy changes materially, we will update the effective date on this page and, where appropriate, mention it in the app's release notes.
9. Contact
For any privacy question, visit the support page or use the developer contact on the Days Mark App Store page.