LensDay Privacy Policy
Summary
LensDay does not collect any personal data. There are no accounts, no analytics, no advertising, no trackers, and no network requests. Your schedules, history, and anything else you enter stay on your devices.
What the app stores, and where
The App stores the following locally on your device only, using Apple's SwiftData framework and your device's own storage:
| Data | Purpose |
|---|---|
| Replacement schedules (lens type, interval, start dates) | To count down to each replacement day |
| Completed cycles (start and end dates) | To show your history and, with Pro, wear insights |
| Optional lens details (brand, power, and similar fields you choose to enter) | Kept for your own reference, e.g. to copy when reordering |
| Box counts | To show how many pairs or lenses you have left |
| Reminder and appearance settings, widget style choice | To schedule your notifications and draw the app the way you set it |
Optional lens details are exactly that — optional. Every field can be left empty, and nothing you enter there is validated, interpreted, or transmitted. The developer cannot see any of it.
Some of what you record — an interval, a power, a brand — relates to your eyes. It is still only ever stored on your own device. The developer never receives it, so there is no health-related information here to share, sell, lose, or hand over, and none of it is used to profile you or shown to anyone.
Widgets and the shared container
The home-screen and Lock Screen widgets read your countdown from a private shared container ("App Group") on the same device. That container belongs to the App alone; no other app can read it, and nothing in it leaves the device.
Apple Watch
If you use the watch app, your countdown is exchanged directly between your iPhone and your watch over Apple's local device link. It travels only between your own devices and is never sent to the developer or any third party.
Notifications
Reminders are local notifications, scheduled and delivered entirely on your device. No notification service, server, or push infrastructure is involved.
Purchases
Purchases and subscriptions are processed by Apple through your Apple Account. The developer receives no name, address, or payment details — the App only learns from the system whether LensDay Pro is unlocked on the device.
Analytics and tracking
None. The App contains no analytics or advertising SDKs, makes no network requests, and collects nothing. Its App Store privacy label is "Data Not Collected."
Children
The App does not collect data from anyone, including children, and has no age-specific functionality.
Deleting your data
Deleting a tracker deletes its history. Deleting the App deletes its entire container, including the App Group container, permanently — there is no server copy to remove because none exists.
Changes
If a future version ever changes any of the above, this policy will be updated here first, with a new "Last updated" date, before that version ships.
Contact
Questions about privacy: support@godevcode.com.