Developer: Open Horizon Labs LLC. Contact: t-dongle@openhorizonlabs.ai. Last updated: September 30, 2026.
The app runs USB management locally. SSID and password are transmitted to the selected, explicitly permitted dongle; the firmware stores them in its NVS. Profiles and status are read back over USB. Password values are neither returned as diagnostic text nor stored in app preferences, files, activity saved state or logs. A Java string can exist in memory while a submission/confirmation is pending; this is not a secure-memory erasure guarantee.
The screen clears its password on submit and backgrounding and disables field saved-state/autofill/personalized IME learning for credentials. Android cloud backup and device transfer exclude app data. An interrupted-install marker, firmware selection/cache and chosen measurement endpoint are persisted locally. The instrument additionally retains up to seven days of measured counters/rates, signal, dongle identity/boot boundaries, incident