Pattern Privacy Policy

Effective date: August 12, 2026

Pattern is designed so Greyscale Holding LLC does not collect your health journal data. Your entries remain on your device.

What we collect

Nothing on our end. Pattern has no user account, advertising, analytics, third-party tracker, or developer-operated server. We do not collect, transmit, sell, or use symptom entries, notes, bleeding observations, doctor questions, reminder preferences, Apple Health data, or app usage.

Data stored on your device

Your entries, symptom scores, cycle observations, questions, preferences, and settings are stored locally by iOS. They remain there until you edit or delete them, remove the app and its data, or restore your device from a backup managed by you or Apple.

Apple Health

If you choose to grant access, Pattern reads sleep analysis and heart rate only to show optional context inside the app. Pattern does not write Health data. Health information is not used for advertising or data mining and is not sent to Greyscale Holding LLC.

Exports and sharing

Doctor PDF reports and JSON exports are created on your device. A file leaves Pattern only when you choose a destination through Apple's share interface. Greyscale Holding LLC does not receive a copy.

Subscriptions and device services

Apple processes subscriptions and provides Pattern with entitlement status needed to unlock features. We do not receive your full payment details. Pattern also uses Apple's on-device services for optional reminders, Face ID or passcode protection, and widgets.

Your choices

You can export or delete all journal data in Pattern Settings, revoke Health access in iOS Settings, disable notifications, turn off the app lock, and manage subscriptions through your Apple Account.

Children

Pattern does not knowingly collect personal information from children or anyone else because it does not collect personal information from users.

Changes

If this policy changes, the revised policy and effective date will be posted at this URL. A policy change will not cause previously local-only health information to be uploaded without clear notice and consent.

Contact

Questions: support@8greyscale.com