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.