Lines
Privacy Policy

Visualize mathematics without giving up your privacy.

Lines is an educational app that helps you explore and visualize mathematical functions. We do not collect, track, store, sell, or share any user data.

Effective date: June 8, 2026

About Lines

Lines makes mathematical concepts easier to understand through interactive visualizations of functions, graphs, and related mathematical ideas.

Our privacy commitment

Lines is designed with privacy in mind. Our approach is simple:

  • No data collection: We do not collect personal information, usage data, diagnostics, or metadata.
  • No tracking: The app does not use analytics tools, advertising trackers, or fingerprinting technologies.
  • No data sharing: We do not sell or share user information with third parties.

Data we collect

None. Lines does not collect or transmit any data about you or how you use the app.

On-device operation

The app's mathematical visualizations and interactions are processed on your device. Your activity within Lines is not sent to us or to third parties.

Third-party services

Lines does not include third-party analytics, advertising networks, or tracking services.

Children's privacy

Lines is suitable for learning, and we do not knowingly collect information from children or adults because the app collects no user data.

International data transfers

No user data is transferred internationally because Lines does not collect or transmit user data.

Changes to this policy

If this privacy policy changes, we will update this page and revise the effective date above.

Summary

In short: Lines helps you visualize mathematical functions while keeping your activity private. We collect no user data.