Last updated: April 14, 2026
None. Vessel does not collect, transmit, or store any of your personal data on remote servers. We have no user accounts, no login, and no backend infrastructure.
All data you enter into Vessel is stored locally on your iPhone using Apple's SwiftData framework:
This data never leaves your device. If you delete the app, all data is permanently removed.
Vessel offers optional integration with Apple Health. If you enable this in Settings:
Vessel never reads HealthKit data for any purpose other than displaying your own intake within the app.
If you enable hydration reminders, Vessel uses Apple's local notification system to send you reminders on your chosen schedule. No notification data is sent to our servers because we don't have any servers.
Vessel does not integrate with any third-party analytics, advertising, or tracking services. The app makes no network requests.
Vessel is not directed at children under 13. Because we collect no data, no child data could ever be collected or processed.
Since we collect no data, there is nothing for us to export, delete, or correct on our end. All control over your data lives in your device:
If we ever change how the app handles data, we'll update this policy and note the change at the top.
Questions? Email essentialdevteam@gmail.com