Last updated: 17 July 2026

OpenFugu Privacy Policy

This policy applies to OpenFugu on both Android and iOS.

OpenFugu does not collect, transmit, or share any personal data. The app never connects to the internet. On Android this is enforced by the system: the app does not request the internet permission at all, so it is technically incapable of sending anything off your device.

Data stored on your device

The app stores the following data locally, in its private app storage:

• User profiles — names you enter and pressure calibration values
• Saved devices — Bluetooth addresses, nicknames, and colors of your eFugu devices
• Training sessions — recorded pressure traces, scores, and statistics

This data never leaves your device unless you explicitly share it (see below). It is deleted when you uninstall the app. If you have your device's system backup enabled (Android backup to your Google account, or an iOS device or iCloud backup), the data may be included in your own backup, like any app's data — this is handled by the operating system, not by OpenFugu.

Bluetooth

OpenFugu uses Bluetooth Low Energy solely to find and communicate with eFugu pressure devices. The app does not request any location permission on either platform. On Android, Bluetooth scanning is additionally declared with the neverForLocation flag: the app does not use scan results to derive your location. On iOS, the app asks for the standard Bluetooth permission before its first scan and uses it for nothing else.

Sharing

Session data leaves the app only when you tap its share button, which opens your system's standard share sheet. You choose what is shared and with which app; OpenFugu itself sends nothing anywhere.

No accounts, no analytics, no ads

The app has no user accounts, no analytics or crash-reporting frameworks, no advertising, and no tracking of any kind.

Contact

OpenFugu is an open-source project. Questions and concerns: openfugu@hubik.org. Changes to this policy are published at https://openfugu.hubik.org/privacy.