Privacy Policy

Last Updated: 02/16/2026

Nereus Phone is designed to support deep work sessions initiated from the Nereus Desktop application.

We respect your privacy. Nereus Phone does not collect, store, sell, or share any personal information.

Information We Collect

Nereus Phone does not collect:

Personal information
Contact information
Location data
Usage analytics
Advertising identifiers
Tracking data

The app does not use third-party advertising SDKs.

QR Code Functionality

Nereus Phone scans QR codes generated by the Nereus Desktop application to start or end focus sessions. QR codes are processed locally on your device and are not transmitted to any third-party services.

Session Sync

If session synchronization is enabled, limited session state data (such as session duration and active/inactive status) may be transmitted between your devices through secure backend services. This data is used solely to coordinate focus sessions and is not used for analytics, advertising, or profiling.

App Blocking

App blocking is performed using Apple's Screen Time and FamilyControls frameworks. Nereus does not receive detailed usage data about your apps.

Data Storage

Session state and settings are stored locally on your device. No personal content or activity data is stored on external servers.

Children's Privacy

Nereus Phone does not knowingly collect personal information from children.

Changes to This Policy

Any changes to this Privacy Policy will be released with future app updates.

Contact

If you have questions about this Privacy Policy, please contact: joseph.balkan@tufts.edu