Last updated: 8 March 2026
DatumMark does not collect, store, or transmit any personal data. No analytics, no tracking, no telemetry.
DatumMark makes zero network requests. The app is entirely offline. All IALA buoyage data is bundled at compile time. No servers are contacted, ever.
The app stores your theme and IALA region preferences locally on your device using standard iOS UserDefaults. No other data is persisted. Quiz scores are not saved between sessions.
DatumMark does not integrate any third-party analytics, advertising, or tracking frameworks. There are zero third-party SDKs. Zero external dependencies.
DatumMark is not directed at children under 13 and does not knowingly collect information from children.
This privacy policy may be updated from time to time. Changes will be reflected on this page with an updated date.
For questions about this privacy policy or the app, please open an issue on GitHub.