Last updated: December 16, 2025

Privacy Policy

Your privacy is paramount. Dear Diary is designed to keep your personal content completely private and secure on your device.

Introduction

Welcome to Dear Diary. This Privacy Policy explains how the Dear Diary mobile application ("App," "we," "us," or "our") handles your information. Dear Diary is a private, offline-first journaling application designed for Android devices. We are committed to protecting your privacy and ensuring that your personal diary entries, notes, moods, and media remain completely private and secure.

Our Privacy Promise

We do not collect, transmit, share, or sell any of your personal data.

Dear Diary is built with privacy at its core. All your journal entries, mood logs, notes, reminders, photos, videos, and audio recordings are stored exclusively on your device. The App operates entirely offline and does not require an internet connection to function. We have no servers, no cloud sync, no user accounts, and no analytics tracking.

Information Storage and Security

Local-Only Storage

All data created in Dear Diary is stored locally on your Android device only. This includes:

  • Diary entries (text, images, videos, audio)
  • Mood check-ins and mood history
  • Quick notes and checklists
  • Reminders and calendar events
  • App settings and preferences

Your content never leaves your device unless you explicitly choose to export or share it using the device's built-in sharing mechanisms.

Encryption and Security Measures

Dear Diary uses industry-standard security practices to protect your data on your device:

  • SQLCipher Encrypted Database: All diary entries, mood logs, and notes are stored in an encrypted SQLite database using SQLCipher, ensuring that your content is protected even if someone gains physical access to your device.
  • EncryptedSharedPreferences: App settings and sensitive preferences are stored using Android's EncryptedSharedPreferences, which encrypts data at rest.
  • Android Keystore: Encryption keys are securely managed using the Android Keystore system, which provides hardware-backed key storage on supported devices.
  • Biometric Authentication: You can optionally enable biometric authentication (fingerprint or face unlock) or password protection to prevent unauthorized access to the App. This uses Android's BiometricPrompt API and does not transmit biometric data outside your device.

Data Deletion

You have full control over your data:

  • You can delete individual entries, mood logs, or notes at any time within the App.
  • Deleted items are permanently removed from the local database and cannot be recovered.
  • Uninstalling Dear Diary from your device will permanently delete all App data, including diary entries, mood logs, notes, and settings. This action is irreversible.

Permissions

Dear Diary may request the following permissions to enable specific features. All permissions are requested only when you choose to use the related feature, and none of these permissions allow the App to transmit data off your device.

Camera

Purpose: To allow you to take photos or record videos to attach to your diary entries.

Usage: Photos and videos are stored locally on your device and embedded in your journal entries. They are never uploaded to any server.

Microphone

Purpose: To record audio notes or voice memos to attach to your diary entries.

Usage: Audio recordings are stored locally on your device and remain private.

File Access / Storage (Media Storage)

Purpose: To allow you to attach existing photos, videos, or audio files from your device's storage to your diary entries, and to save exported reports (PDF, CSV, JSON) to your device.

Usage: The App only accesses files that you explicitly select. No automatic scanning or uploading of files occurs.

Biometric Authentication

Purpose: To enable fingerprint or face unlock as an optional security feature for accessing the App.

Usage: Biometric data is processed entirely by your device's secure hardware and operating system. Dear Diary does not store, access, or transmit biometric information.

No Data Collection or Transmission

Dear Diary does not:

  • Collect any personal information
  • Require user registration or login
  • Use analytics, tracking, or crash reporting services
  • Display advertisements
  • Access the internet or communicate with any servers
  • Share your data with third parties
  • Use cookies or similar tracking technologies

The App is completely offline and operates independently on your device.

User-Controlled Exports

Dear Diary allows you to export your mood history and reports in PDF, CSV, or JSON formats. These exports are:

  • Generated locally on your device
  • Saved to a location of your choice on your device or external storage
  • Under your complete controlβ€”you decide whether to keep, share, or delete them

We do not have access to any exported files. If you choose to share an export (e.g., via email or cloud storage), that action is entirely your responsibility, and the privacy of that data will be governed by the service you use to share it.

Children's Privacy

Dear Diary is not intended for use by children under the age of 13. We do not knowingly collect or store any personal information from children. Because the App does not collect any data whatsoever, we have no means of verifying the age of users. If you are a parent or guardian and believe your child has used Dear Diary, please be aware that all data is stored locally on the device and can be removed by uninstalling the App.

Third-Party Services

Dear Diary does not integrate with, share data with, or rely on any third-party services, analytics providers, advertising networks, or cloud storage platforms. The App functions entirely offline and independently.

Data Safety (Google Play Compliance)

In accordance with Google Play Store Data Safety requirements, we declare the following:

  • Data Collection: No data is collected, transmitted, or shared by the App.
  • Data Storage: All data is stored locally on the user's device using encrypted storage.
  • Data Security: The App uses industry-standard encryption (SQLCipher, EncryptedSharedPreferences, Android Keystore) and optional biometric authentication to protect data at rest.
  • Data Deletion: Users have full control to delete their data at any time. Uninstalling the App permanently deletes all local data.

Your Rights and Control

You have complete ownership and control over your data:

  • You own all content you create in Dear Diary.
  • You can view, edit, or delete any entry, note, or mood log at any time.
  • You can export your data in multiple formats for backup or migration purposes.
  • You can uninstall the App at any time to permanently delete all local data.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in the App's features or legal requirements. Any changes will be posted within the App and on this page with an updated "Last updated" date. We encourage you to review this Privacy Policy periodically. Your continued use of Dear Diary after any changes constitutes your acceptance of the updated Privacy Policy.

Contact Us

If you have any questions, concerns, or feedback about this Privacy Policy or how Dear Diary handles your information, please contact us at:

Email: mydeardiaryjournal@gmail.com

We will respond to your inquiry as promptly as possible.


Summary

Dear Diary is built on the principle of privacy by design:

  • βœ“ All data stays on your device
  • βœ“ Encrypted local storage
  • βœ“ No accounts, no servers, no cloud
  • βœ“ No data collection or tracking
  • βœ“ No ads or third-party services
  • βœ“ You own and control your content
  • βœ“ Optional biometric lock for added security

Your journal, your device, your privacy.