Privacy Policy

1. Data Storage & Cloud Backups

Your journal entries, photos, drawings, voice notes, routines, tags, mood data, and saved health snapshots are stored privately on your device. To protect against data loss, the app offers optional cloud backups. If enabled, a copy of your data is stored securely within your personal Apple iCloud (iOS) or Google Drive (Android) account. Euthy Journal utilizes restricted, app-specific storage; it can only access the files it creates and has no permission to view, read, or modify any other content in your personal cloud storage. We do not operate our own central database and cannot access, read, or share any of this content.

Euthy Journal's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.

2. Automated Backups

Automated backups periodically create a ZIP archive of your journal and upload it to your personal iCloud Drive or Google Drive. On iOS, these are stored in a visible folder in your Files app for transparency. On Android, these are stored in a secure, app-specific hidden folder within your Google Drive to prevent accidental deletion. These files are controlled entirely by you via your cloud provider's account management settings.

3. Security & Biometrics

If you enable PIN or Biometric lock (FaceID/TouchID/Fingerprint), the app uses your device's native security systems. Your PIN is stored securely on your device, and your biometric data is never shared with the app or any third parties. Your cloud backups are protected by the security of your Apple or Google account.

4. Health Integration (Apple Health & Health Connect)

If you choose to enable health integration, the app will read specific metrics including steps, sleep, heart rate, and exercise/workouts to provide insights into how your activity affects your mood. This data is read directly from your device's health store and is stored within your journal entries only when you save them. We never upload your health data to our servers, and we do not share it with third parties or use it for advertising.

Retention & Deletion: Health data is stored only as long as the journal entry containing it exists. Deleting a specific journal entry permanently removes the associated health data. Deleting the Euthy Journal app from your device will erase all locally stored data.

5. Location & Weather Data

If you choose to use the location tagging, map, or weather features, the app will request access to your device's location services. Your precise location coordinates, tagged places, and retrieved weather conditions are stored locally on your device within your journal entries. To provide address lookup (geocoding), map displays, and current weather conditions, your coordinates are processed by native services (Apple Maps and WeatherKit on iOS, Google Maps and Google Weather API on Android). This only happens when you explicitly trigger these features (e.g., by clicking the location or weather buttons). We do not store your location or weather data on our servers or track your movements in the background.

6. Insights & AI Features

Local Insights: Core journaling summaries, statistics, and graphs (such as your weekly metrics and mood charts) are generated strictly on your device using local algorithms. All reflection and processing happen entirely within the Euthy Journal app on your phone.

Premium AI Features (Opt-In): If you choose to subscribe to Euthy Premium AI and use the AI Companion chat, semantic history search, automatic entry analysis, or AI image generation/editing, Euthy Journal transmits the relevant text inputs or attached images to our secure Google Cloud Run proxy. This data is processed 100% statelessly by state-of-the-art AI models (such as Google Gemini and Imagen via Vertex AI). Your inputs, chat sessions, and generated or modified images are processed in real-time, are never stored on the cloud servers, are not logged, and are never used to train third-party models. Your complete chat histories, generated illustrations, and journals are saved strictly in your local device's database, and are included in your cloud backups only if you manually choose to run a backup.

Generative AI Safety & Content Reporting: In compliance with Google Play and App Store safety regulations, you are provided with in-app reporting tools (indicated by a Flag icon) next to AI-generated text or images. Tapping this icon allows you to explicitly report inaccurate, misleading, or harmful AI outputs. Tapping to report content is a transactional, user-initiated action. Submitting a report transmits the flagged response snippet or image filename and the reason selected directly to our review team for safety quality monitoring. Because this is a critical safety and compliance mechanism explicitly requested by the user, these safety reports bypass the general analytics opt-out setting, but remain strictly anonymous and do not contain any of your private journal texts, prompts, or personal identifiers.

7. Performance & Crash Reporting

To ensure the app is stable and performing well, we may use analytics, performance monitoring, and crash reporting services. This data is used to identify technical bugs and optimize reliability. It may include technical information such as app version, device model, operating system version, and crash logs. It does not include your journal entries, photos, drawings, voice notes, or other private journal content.

8. Privacy Rights & Global Compliance (GDPR, LGPD, CCPA, etc.)

While Euthy Journal is designed in alignment with the General Data Protection Regulation (GDPR) and Brazil's LGPD, we choose to extend these privacy rights to all of our users globally, regardless of their location. You have the following rights:

• Right to Access: You can export your core journal data (text, moods, tags) at any time for free via the JSON Export tool in Settings.
• Right to Erasure: You can delete all your data permanently using the 'Clear All Data' button in Settings.
• Right to Portability: Your data is exported in standard formats (JSON) for use in other services. Advanced formats (PDF, ZIP) are available through Premium.
• Right to Object: You can opt-out of anonymous usage analytics and technical monitoring at any time via the toggle in Settings.

To exercise your Right to Erasure for data processed by our third-party sub-processors (Sentry and RevenueCat), please contact us at: support@euthylabs.com with your Support ID, which can be found in the Settings > About section of the app.

9. Data Sub-Processors

To provide our services, we use a limited number of trusted third-party sub-processors:

• Aptabase: Provides privacy-first, anonymized usage analytics.
• Sentry: Provides technical crash reporting and performance monitoring to ensure app stability.
• RevenueCat: Manages subscription status and purchase verification.
• Apple (Sign-In, iCloud, Maps, Location, & WeatherKit) / Google (Sign-In, Drive, Maps, Location, & Weather API): Sign in with Apple and Google Sign-In are required when purchasing a Premium AI subscription to establish a stable, pseudonymous Support ID used solely to manage your AI credit balance — no personal profile is created. Restoring a previous purchase does not require signing in; it can be done using your existing Support ID. Apple and Google also handle optional cloud backups, process coordinates to display maps and locate addresses (geocoding), and retrieve weather data. We never have access to your cloud credentials or store your coordinates.
• Google Cloud Platform (GCP & Vertex AI): Processes stateless Large Language Model (LLM) and image generation/editing queries to power Premium AI features (companion chat, semantic history search, automatic entry analysis, and AI illustrations). While your journal entries and generated images are processed completely statelessly and never stored or logged by Google Cloud, we utilize Google Cloud Firestore (hosted in the United States) to securely store your pseudonymous Support ID and remaining monthly credit balance to manage your premium AI quota. No personal identifiers or journal contents are stored in this database.

10. Subscriptions

Subscription payments are handled securely by Apple and Google. We use RevenueCat to manage subscription status and verify purchases. RevenueCat acts as a service provider and processes only the information necessary to validate your subscription, such as transaction IDs and device identifiers. They do not have access to your personal journal entries.

AI Usage & Credit Tracking: To deliver Premium AI benefits, we track your remaining monthly credit balances against your pseudonymous Support ID. This data is processed and securely stored in Google Cloud Firestore (located in the United States) based on contractual necessity (to enforce and deliver your subscription benefits). No personally identifiable information or journal contents are associated with this database record, and no account or sign-in is required to protect your credit balance.

11. Third-Party Import Names

Euthy Journal may refer to third-party journal apps only to describe compatible export formats. Day One, Journey, Daylio, Diarly, Diarium, and Stoic are trademarks of their respective owners. Euthy Journal is not affiliated with or endorsed by them.

12. Website & Cookies

To respect your online privacy, the Euthy Journal website (https://euthylabs.com) is built without using cookies, web beacons, tracking pixels, or client-side analytics. We do not collect, store, or share any personal tracking information about visitors browsing our website.

13. Contact Support

If you have any questions about this Privacy Policy or how your data is handled, please contact us at: support@euthylabs.com