SHIYU时予

Privacy Policy

Last updated: 2026-10-17

Shiyu is built to collect as little as possible. There is no account system, no server of ours, and no third-party analytics or advertising SDK. Here is exactly where your data lives.

1. What we do not collect

• No name, phone number, email, contacts, location, or photos;
• No content of the days you record (titles, dates, notes, groups);
• No third-party analytics, advertising, or crash-reporting SDKs;
• No cross-app tracking, and no advertising identifier (IDFA).

2. Where your data lives

On your device. What you record is stored in the App’s local database (SwiftData, backed by SQLite).

In your iCloud. With iCloud enabled, data syncs to the private database of your own iCloud account through Apple CloudKit. Only you and your devices can access it; the developer cannot read it. Apple’s handling of iCloud is covered by Apple’s privacy policy.

In the widget snapshot. So the Home Screen and Lock Screen widgets can show the nearest day, the App writes a read-only snapshot (title, date, icon, color) into its App Group container on your device. That file never leaves the device.

3. System permissions

• Notifications — for the reminders you set. They are scheduled locally by iOS; there is no server, so nothing is uploaded.
• iCloud — for syncing across devices and restoring on a new device.

You can turn either off in Settings → Shiyu. The App keeps working; only the related feature is unavailable.

4. Purchases

Membership is a one-time purchase. Payment, refunds, and code redemption are handled entirely by Apple. We never receive or store your payment information. The App only reads whether the current account owns the product (from StoreKit) in order to unlock features.

5. Diagnostics

We do not integrate third-party crash reporting. If you choose “Share with App Developers” in iOS settings, Apple may provide us with anonymous crash logs and usage statistics; you can turn that off at any time.

6. Children

The App is not directed to children under 13, and we do not knowingly collect personal information from children.

7. Your choices

• Access and edit — everything is in the App and can be viewed or edited at any time.
• Delete — delete a day, delete a group, or remove the App’s data in iOS Settings. Deleting the App removes local data.
• iCloud copy — remove it in Settings → Apple Account → iCloud → Manage Account Storage.

8. Data retention

We retain nothing. Your data lives only on your device and in your iCloud, for as long as you choose.

9. Security

Data is protected by the iOS sandbox, your device passcode, and your Apple Account security. Please keep your account and device credentials safe.

10. Changes

If this policy changes, this page will be updated with a new date. Material changes to how data is used will be announced in the App.

11. Contact

Email: ruanweidev@163.com