Privacy Policy — Lensday

Last updated: 23 June 2026

Lensday (“the app”) is a contact-lens usage tracker for Wear OS. This policy explains what data the app handles. The short version: everything stays on your device, and nothing is ever sent anywhere.

Data the app stores

The app stores the information you enter so it can track your lenses, all of it locally on your watch:

• Lens usage events (activate, deactivate, change) with left/right eye and timestamps
• Lens change dates and remaining stock counts
• A lens-duration reminder setting (in days)
• Optional per-eye lens details: brand, astigmatism flag, and prescription values (PWR, CYL, AXIS, DIA, BC)

How your data is used and stored

All data is stored only in the app’s private storage on your device using Android’s Jetpack DataStore. The app does not transmit, upload, sync, sell, or share any of this data. The app requests no internet permission and contains no networking code.

Third parties

The app uses no analytics, advertising, crash-reporting, or tracking SDKs. No third party receives your data.

Your control over your data

Your data never leaves the device, so you remain fully in control. You can erase all of it at any time by clearing the app’s storage in your device settings or by uninstalling the app.

Children

The app is a general-purpose utility and is not directed at children.

Changes to this policy

If this policy changes, the updated version will be posted at this same address with a new “Last updated” date.

Contact

Questions about this policy: basilbase.software@gmail.com