LingGrid 令卡 Privacy Policy

Privacy Policy

LingGrid Legal Document

Last updated: June 4, 2026

English

LingGrid is designed to keep dynamic password cards on your own device and in the iCloud account associated with your Apple ID.

Where your data lives: the card name, timestamps, and the 8×8 lookup grid are stored locally on your device. If iCloud Sync is enabled, they are also synced to your own iCloud private database. LingGrid does not store these contents on a developer-operated server or upload them to us.

Photo handling: card photos are used only during import and are not saved after you leave the import flow.

iCloud Sync: when enabled, card records are stored through Apple's CoreData and CloudKit infrastructure. The card payload is encrypted with AES-GCM before it is written to CoreData or CloudKit. LingGrid does not operate its own server for cards, coordinates, or passwords.

Device security: the app requires system authentication before showing saved cards. Local encrypted data is protected by the device and Keychain.