NeatmileSTUDIO

DAYHALO

Privacy policy

DayHalo is a personal tool for recording headache locations and symptoms. This policy explains how the current version handles your data. Operated by Qihe Zhou (Neatmile Studio). This policy covers the DayHalo app. For this website, see our website privacy notice.

Last updated: September 20, 2026

Data we handle

You can record start time, 3D locations, intensity, pain sensations, other symptoms, approximate duration, and whether medication was taken. Your language preference and whether you have seen the icon introduction are stored on your device. You choose the app icon manually.

Storage & transmission

Headache entries are stored in the app’s data on your device. This version has no accounts or server and does not automatically send entries to the developer. It has no ads or third-party analytics. The developer cannot directly access your local entries.

Permissions

This version does not access your camera, location, contacts, or Apple Health data. Changing the app icon manually does not require notification permission. iOS shows a confirmation. Icons do not indicate pain or recovery.

Retention & deletion

Entries remain on your device until you delete them in the app. You can delete individual entries from history or entry details. Deleting the app removes its local data. Device backups and restores are managed by iOS and your system settings.

Email support

If you email us, we receive your email address and any content you choose to share so we can respond to your request. The app does not automatically attach headache entries. Please share only what is needed for support. You may also email us to request deletion of information from your support correspondence.

[email protected]

Medical information

DayHalo does not diagnose medical conditions, identify causes, or recommend treatment. It does not replace a clinician’s assessment or advice. Consult a qualified healthcare professional before making medical decisions.

Policy changes

If a future version adds cloud sync, accounts, analytics, or other data processing, this policy will be updated before those features are enabled.

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