Privacy Policy
2026-10-08
Offline writing
Jianzi Offline is provided by Zequn Huang. Writing, drawing, previewing and local saving work without an account or network. The app does not upload handwriting, recipient notes, letters, device identifiers or usage data to the developer. It contains no ads, analytics, tracking or third-party social SDKs.
Local storage and deletion
Handwriting, paper style, recipient notes and saved letters stay in the app’s private device directory. Recipient notes organize your library and do not appear on exported images. Delete saved copies in the library; the current draft is a separate copy and is not cleared by deleting a saved letter. Starting a new letter offers to save the previous draft. Uninstalling removes local app data. iOS and your device settings manage backups and their deletion; we have no cloud synchronization server.
Sharing you choose
A letter image is generated for preview. Only when you open the system share sheet and choose a destination is it passed to that app or storage location. The destination, recipient or storage provider may process it under their own policies. We cannot withdraw copies you already sent. Canceling sharing retains your draft. The app does not read contacts, chat history, photo library, location, camera or microphone.
Website and support correspondence
You may choose to open the policy and support links in a browser; the app does not automatically load this website while writing. Cloudflare hosts this website and processes ordinary network requests, including IP addresses, to serve it. If you email 510245979@qq.com, we receive your email address and the information you provide only to respond and handle your request. Correspondence is retained until the request is resolved or you request deletion, except where law requires retention. Do not send passwords or unnecessary private letters. The app itself does not collect or transmit support email.
Scope and updates
These practices apply to all users. There are no accounts, subscriptions, ads or in-app purchases. Changes will be posted here. Developer: Zequn Huang. Contact 510245979@qq.com for privacy questions or to request deletion of support correspondence.