Privacy Policy

Last Updated: February 2026

Overview

LensAlarm is designed with your privacy in mind. We believe your personal data should stay personal.

Data Collection

We do not collect any data.

LensAlarm:

  • Does not require an account or registration
  • Does not collect personal information
  • Does not track your usage or behavior
  • Does not use analytics services
  • Does not contain advertisements
  • Does not share any data with third parties

Data Storage

All data you enter into the app is stored locally on your device only. This includes:

  • Lens pair information (start dates, schedules, names, notes)
  • App settings and preferences
  • Notification preferences

Your data never leaves your device. There are no servers, no cloud sync, and no backups to external services.

Notifications

The app may send local notifications to remind you about lens replacement. These notifications are:

  • Generated and scheduled entirely on your device
  • Not sent through any external service
  • Controllable through your device's notification settings

Data Deletion

Since all data is stored locally on your device:

  • Deleting the app removes all data
  • You can clear all data within the app settings
  • No data remains on any external servers (because none exists)

Children's Privacy

LensAlarm does not collect any personal information from anyone, including children under 13 years of age.

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be reflected in the "Last Updated" date above.

Contact

If you have questions about this privacy policy, please contact us at: contact@mathfolder.com

Summary

Your data stays on your device. We don't see it, collect it, or share it.