Yanjian Privacy Policy

This is a translation of the Chinese version. If they differ, the Chinese version prevails.

Effective date: November 7, 2026
Operator: Shanshan Huang
Contact email: huangyumi0518@gmail.com

Who we are

Yanjian is developed and operated by an individual developer, Shanshan Huang. For any privacy question, write to huangyumi0518@gmail.com.

The short version

Photos are analyzed only on your iPhone. This app has no servers and no accounts, and it collects or uploads no personal information.

Permissions the app uses and why

• Photos (full or limited access): to sort photos by capture time, analyze photos, and show thumbnails and full-screen images.
• Photos (add): to put your picks into a new album.
• Using the system picker when photo access is off: the app can only read the few photos you choose yourself, and makes a temporary copy on your device for analysis; these temporary copies are deleted when you next open the app or choose again.

What is stored on your iPhone

• Cache of analysis results: stored on the device to avoid re-analyzing every time.
• Your swaps and corrections: stored on the device and restored the next time you open the same shoot.
• Temporary JPEG files created when sending: in the app's temporary directory, cleaned up after sending.

All of this lives in the app's own sandbox and is removed when you delete the app.

Sending and saving to an album

• Save to album: only creates a new album and adds your picks to it; it does not modify or delete originals.
• Send: writes the photos as temporary JPEG files and hands them to the system share sheet, and you choose who to send them to. These files keep the capture time and location and other information from the originals.

iCloud photos

When an original is only in iCloud, the system photo service downloads it to your iPhone. This is done by the system; the app itself makes no network requests. When you are offline, the app tells you and does not get stuck.

Purchases

Saving to an album and sending need a one-time unlock; the in-app purchase is handled by Apple. We cannot see your payment information or your Apple account.

What we do not do

• We do not collect personal information or track your usage.
• We do not serve ads or integrate third-party analytics or advertising SDKs.
• We do not share your data with anyone.
• The app makes no network requests (the privacy policy and help pages opened inside the app are opened by the system browser).

Children

This app does not offer a dedicated service to children under 14.

Changes and contact

If the policy is updated, it will be posted on this page and the effective date at the top will be updated. For questions, write to huangyumi0518@gmail.com.