Hankan Privacy Policy

🌐 中文: HAN:KAN 隐私政策 · 日本語: HAN:KAN プライバシーポリシー · 한국어: 한칸 개인정보 처리방침

Wonsik Yang ("we") respects your privacy. This policy explains what information the Hankan (HAN:KAN) app for iOS, iPadOS and macOS ("the app") handles.

Summary

No account or sign-in. We do not ask for your name, email or phone number.
Your events, to-dos and focus records stay on your device and in your own iCloud. We cannot see them.
We send only crash reports and anonymous usage statistics to Google Firebase to fix bugs and improve the app.
No ads, no advertising identifier (IDFA), no tracking.

Data that never leaves your control

Calendar events — shown and edited in the app when you allow Calendar access. They stay in your original calendar accounts.
Reminders — when you allow Reminders access, your existing reminders are imported into the app once. The originals are not deleted.
To-dos, Hankan events, focus records and settings — stored on your device. Items you choose to sync are stored in your private iCloud (CloudKit) database, governed by Apple's Privacy Policy.
Notifications — scheduled locally on your device.

You can turn off any permission at any time in Settings › Privacy & Security.

Data we collect

Data	Purpose	Service	Retention
Crash logs, error messages shown to you, device model, OS version, app version, installation ID	Find and fix bugs	Firebase Crashlytics	90 days
Screens (tabs) opened, app launches, device model, OS version, app version, app instance ID, country/region estimated from IP address	Understand which features are used	Google Analytics for Firebase	2 months

This data does not identify you, is not linked to your identity, and is not used for tracking or advertising. It is processed by Google LLC in the United States and other countries where Google operates. See Firebase Privacy. The app has no in-app switch to stop this; deleting the app stops all collection.

Sharing

We do not sell or share your personal information with third parties, except where required by law.

Children

The app is not directed to children under 14 and does not knowingly collect their information.