CalliMate Privacy Policy (Android China)

Version 2.3.0. Effective date: 2026-10-14. Applies to the android / cn release.

Platform: Android Distribution region: mainland China channels Developer: Beijing Chenghan Bowen Education Technology Co., Ltd. Contact: contact@chenghanbowen.com

1. Scope

This Policy applies to CalliMate for Android distributed through mainland China channels and related copybook browsing, calligrapher information, copybook details, feedback, legal page, analytics, advertising, first-party promotion, and support services.

2. Information We Process

• Copybook, calligrapher, copybook-detail, search, browsing, favorites, display setting, and practice-related local data.
• Feedback content, contact details, screenshots or image attachments that you actively submit, together with app version, device model, system version, channel, and installation instance ID.
• Legal page parameters, including product line, document type, platform, distribution region, and locale, used to display privacy policies or terms.
• Device and app information, Android ID, OAID/GUID, network status, IP address, page/tap/crash events, ad impression/click/close events, and first-party promotion impression, click, and redirect events for analytics, advertising, diagnostics, and promotion.

3. Region-Specific SDKs and Services

• Umeng mobile analytics: used only after privacy consent for basic analytics, channel analysis, and diagnostics.
• GroMore / Pangle advertising SDK: used only after privacy consent and when ad configuration is enabled for ad requests, impressions, clicks, frequency control, measurement, and anti-fraud.
• First-party promotion center: used for our own app promotions, operating slots, impressions, clicks, and redirect statistics.
• Android WebView and the system file picker: used to display legal/activity pages and to let you actively select images or attachments for feedback.

Third-party SDKs or services work only after you agree to this Privacy Policy, grant any required system permission, and enable the relevant feature or ad configuration.

4. Permissions and System Capabilities

CalliMate Android China may use network access, network state, notifications, legacy storage/media selection, the system file picker, WebView, and advertising-related system capabilities. Each permission is used only for the corresponding feature, and you can manage authorization in Android system settings.

5. Your Rights

We do not sell your personal information. You can manage permissions in Android settings or contact contact@chenghanbowen.com to request access, correction, deletion, or withdrawal of consent. If this Policy differs from a feature-specific notice, the notice that better protects user rights will apply.

Children's Personal Information Protection Rules

This is a standalone children's personal information section within this Privacy Policy. “Child” means a minor under 14. CalliMate is a general calligraphy learning tool and is not specifically directed to children.

When the app is first opened or asks for privacy consent again, if the user may be under 14, a guardian should read this section and this Policy first and decide whether to consent. Before guardian consent, you may continue to use Basic Services that do not depend on that consent. Processing that needs separate consent or an active request occurs only when its stated conditions are met. We do not ask children to provide a birthday, age, identity document, or similar information for routine use.

Current processing facts for this platform:

• Local content: Copybooks, calligrapher information, copybook details, search, browsing, favorites, display settings, practice content, and rubbing images that you save or select continue to be processed mainly on the device for the existing features. The three platforms currently provide no account registration or sign-in.
• Active feedback, installation, device, and SDK data: When you actively submit feedback, feedback content, contact details, screenshots or image attachments, app version, channel, device maker/model, OS version, and installation ID are used for issue handling. Android Umeng, GroMore/Pangle, and first-party promotion are described in the relevant sections of this Policy to process Android ID, OAID/GUID, device/network/IP data, sensor list, app events, ad events, and promotion events.

The retention period, storage location, sharing scope, and handling by third-party services for children's information are described in the corresponding storage, sharing, and third-party service sections of this Policy. When a guardian makes a request, we handle it under this Policy and applicable law; previously submitted feedback or saved data is not automatically deleted.

A guardian may contact contact@chenghanbowen.com to request access to, correction or deletion of children's personal information, or withdrawal of the related consent. To prevent impersonation, we perform only necessary and proportionate verification for an application. If we discover that children's personal information was processed without guardian consent, we will stop the related processing and delete or anonymize it as required by applicable law.

Privacy Choices and Withdrawal

Use the app's Privacy Choices/Privacy Management entry in Settings to review the current state or choose again. If you previously consented, confirm “Withdraw Privacy Consent” before switching to Basic Services; canceling that confirmation leaves the existing choice unchanged. Resuming the relevant optional features requires your explicit consent and does not replay prior ad requests or impressions.

Withdrawal cancels current ad preparation and pending presentation, stops new advertising requests, and disables optional analytics and diagnostics controlled by the app. Basic features that do not depend on that consent remain available. SDK base instances, system diagnostics, or vendor-automatic behavior may still exist or run; this does not mean all SDKs automatically stop and does not guarantee zero SDK activity before consent. Withdrawal does not affect processing already lawfully completed or automatically delete submitted feedback or previously saved data. Deletion requests use the existing contact and handling procedures.

The app's main privacy choice is separate from system permissions and personalized-ad settings. Limiting personalization neither withdraws main privacy consent nor means ads process no information. This CN shell does not add the Global Google/Firebase/AdMob/UMP route. Any ATT system authorization that actually applies on iOS does not replace the app's main privacy choice.