Thames Foot Tunnels for iOS, iPadOS, and watchOS — Last updated 15 September 2026
Thames Foot Tunnels is built by Marc Puricelli as a free, community-supported app.
This app collects minimal data:
Community lift reports. If you submit a report, the app stores the selected tunnel and lift, your observation, report time, app version and a device-derived hashed identifier in Apple's CloudKit public database. The identifier helps limit duplicate submissions and calculate community consensus, and allows reports for the same lift from the same device to be associated. The app does not display your name, email address or Apple Account to other users. Reports are used only to provide the community status feature, not for advertising or tracking. Sending reports requires iCloud availability; viewing council status does not require an app account.
Notification preferences. Your notification settings are stored locally on your device using UserDefaults. They are not transmitted to any server.
Status data. The app fetches publicly available lift status information from the Royal Borough of Greenwich website. No personal data is sent in these requests.
Community reports are stored using Apple's CloudKit service and used to show community status to other app users. We do not sell report data or use it for advertising or cross-app tracking. Apple manages this infrastructure. The app does not ask you to create an account, but CloudKit stores the report fields described above so the community reporting feature can work. See Apple's privacy policy for details on how Apple handles CloudKit data.
This app does not knowingly collect data from children. The community reporting feature does not require an in-app account, but it does store report metadata, including a device-derived hashed identifier and app version, as described above.
If this policy changes, the updated version will be posted here with a new date.
If you have questions about this policy, contact greenwich.tunnel.app@gmail.com.