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Privacy Policy

Effective date: September 12, 2026

Service: Dear Darling — Partner relationship recording and AI reply support mobile app (Android)

Dear Darling (hereinafter referred to as the "App") prioritizes the protection of users' personal information and conversation content. This policy explains what information the App processes, how it stores and transmits it, and how it protects users' rights.

If this policy changes, we will notify you in advance through in-app notices and this page.

1. Key Summary

  • Conversation originals and partner information are stored only on the device and are not stored on servers.
  • When receiving AI replies, your messages and partner information summary are transmitted to the server via encrypted (TLS) communication, used only for immediate AI analysis, and not stored after processing.
  • AI analysis is performed through Alibaba Cloud servers, and the text required for analysis is transmitted to that service.

2. Information Collected and Processed

The following describes the information items processed by the App and their paths.

2.1 Information stored only on device (not transmitted externally)

InformationContentStorage location
Partner profileGender, age, MBTI, attachment style, nickname, likes/dislikes, valuesDevice internal storage (Hive)
Conversation recordsMessages entered by the user, analysis results (recommended replies, emotion labels, etc.)Device internal storage (Hive)
Schedules and anniversariesSchedules entered by the user or auto-extracted from conversationsDevice internal storage (Hive)
App settingsLanguage, theme, etc.Device internal storage (SharedPreferences)

This information is immediately deleted from the device when the app is uninstalled or app data is deleted.

2.2 Information transmitted to server for AI analysis (not stored on server)

When a user requests message analysis, the following information is transmitted to the server via encrypted communication (HTTPS/TLS).

Transmitted informationPurpose
Input message text (max 2,000 characters)Emotion analysis and recommended reply generation
Last 5 conversationsGenerate contextually natural replies
Partner profile summary (gender, age, MBTI, attachment style, nickname, preferences, values)Generate replies tailored to partner characteristics
App language settingFix reply language
Current time (with timezone)Interpret relative dates like 'next week', '3 days later'
  • This text information is processed only in memory after reply generation and is not recorded in any database.
  • The server only stores the anonymous usage metadata described in 2.3 below, not the original text.

2.3 Information stored on server

InformationPurpose
Hash of randomly generated device identifier at app installFree usage quota and subscription tier management. The original device identifier is not stored.
Usage metadata (request time, model name, token count, response time, HTTP status, primary emotion label)Service operation, cost management, error statistics
  • The device identifier is not a hardware ID (Android ID, IMEI, etc.) but a unique per-install value generated by the app using cryptographic random numbers, stored on the server only as an irreversible hash.
  • Conversation content, partner profile originals, and free text are not stored on the server.

2.4 Notifications

Anniversary notifications are local notifications scheduled on the device. Notification content is not sent by external servers, and no additional information is collected for notifications.

3. Third-party sharing

For AI reply generation, analysis request data is shared with the following service.

Third partyInformation sharedPurpose
Alibaba CloudMessage text, recent conversations, partner profile summary, languageAI language model inference (recommended reply generation)
  • Shared data is used only for reply generation purposes, subject to Alibaba Cloud's privacy policy and terms of service.
  • Data is not sold to any third party or used for advertising purposes.

4. Data retention period

InformationRetention period
Device data (conversation records, profile, schedules, settings)Until app uninstallation or data deletion
Server device hash and usage metadataRetained during service provision. Immediately destroyed upon user deletion request.
Conversation text and profile transmitted for AI analysisNot stored on our servers (immediately cleared from memory after reply generation)

5. Information security

  • All appserver communications are protected by TLS encryption (HTTPS).
  • Server APIs are protected by device-registration-based authentication tokens, rejecting unauthenticated requests.
  • Device identifiers are stored as hashes using one-way functions and cannot be reversed to the original value.

6. User rights

  • Device data access, modification, deletion: Users can directly view, modify, and delete conversation records, profiles, and schedules within the app. Uninstalling the app (or Settings → Apps → Clear data) immediately removes all local data.
  • Server record deletion: To request deletion of device hashes and usage metadata stored on the server, please contact us via the email below. We will process it immediately upon confirmation.
  • Since the server does not store conversation originals, there are no additional access or export targets for conversation content.

7. Children's personal information

This app is not targeted at children under 14 years of age, and we do not knowingly collect information from children.

8. Advertising and tracking

  • We do not use advertising identifiers (AAID).
  • We do not include behavioral tracking, third-party analytics, or crash reporting SDKs.

9. App permissions guide

PermissionPurpose
Internet (INTERNET)Communication with AI analysis server (required)
Notifications (POST_NOTIFICATIONS)Anniversary scheduled notifications (user choice)
Exact alarm/reboot/vibrationDevice scheduled notification operation

10. Privacy policy changes

When this policy changes, it will be posted on this page before the effective date, and important changes will be announced through in-app notices.

11. Contact

Email: edward541938@gmail.com