HaloNotch Privacy Policy

HaloNotch is a free, open-source app by Effrix for macOS and Windows. It has no account, no ads and no analytics. Effrix runs no servers for HaloNotch and does not receive any of your data.

What stays on your computer

• Clipboard history is kept in memory. Copies that apps mark as concealed, such as those from password managers, are never stored.
• Vault secrets are encrypted with your PIN (PBKDF2-SHA256 and AES-GCM). The Vault locks after 5 minutes, when the computer sleeps and when the screen locks.
• Screen time (time per app, app switches, activity by hour) is stored only on your computer.
• Calendar, reminders and now playing are read from your computer to show them in the notch. They are not sent anywhere.
• Files and screenshots you park in the notch stay where they are on disk.
• Camera mirror shows the camera only on your screen. The image is not sent anywhere.
• Usage reads Claude Code and Codex token counts from log files on your computer, and only if you turn it on.

What leaves your computer

Only weather. To show the forecast, HaloNotch sends an approximate location (about 1 km) or the city you type to Open-Meteo. Nothing else leaves the machine.

Links you open from HaloNotch, such as a Teams, Zoom or Meet join button, open in that service's app or your browser and are covered by that service's own privacy policy.

Screen sharing

The notch panel is hidden from screen sharing and screen recordings.

Permissions

On macOS, the system asks for your permission before HaloNotch can read your calendar, reminders, location or camera. You can change these at any time in System Settings → Privacy & Security.

Check the code

HaloNotch is open source. You can read exactly what it does, or build it yourself, at github.com/abinsabu2/HaloNotch. Downloads are served by GitHub under GitHub's privacy statement.

Children's privacy

HaloNotch is not directed at children under 13 and does not collect personal information from anyone.

Changes to this policy

If HaloNotch's data handling changes, this page will be updated and the date above will change.

Contact

Questions about this policy: firegram2025@gmail.com