Your thoughts, images, and voice memos are yours alone. Euthy Journal is created and operated by Yhonathon Maharaj and is built on a "Local-First" philosophy. We believe your private journal should never be stored on a developer's server where it could be accessed, scanned, or leaked.
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.
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.
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.
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.
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.
All insights, patterns, and summaries (such as your "Journaling Persona" or "Weekly Digest") are generated strictly on your device using local algorithms. Your journal text and activity data are never sent to external servers or third-party AI services for analysis. All reflection and processing happen entirely within the Euthy Journal app on your phone.
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.
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:
To exercise your Right to Erasure for data processed by our third-party sub-processors (Sentry and RevenueCat), please contact us at: euthylabs@gmail.com with your Support ID, which can be found in the Settings > About section of the app.
To provide our services, we use a limited number of trusted third-party sub-processors:
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.
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.
If you have any questions about this Privacy Policy or how your data is handled, please contact us at: euthylabs@gmail.com
Last Updated: May 2026