StonhamStudios

GYST

Privacy Policy — G.Y.S.T.

This Privacy Policy explains how G.Y.S.T., a personal budgeting app built for iOS, handles your information.

Last updated: April 15, 2026.

Information We Collect

G.Y.S.T. does not collect personal information about you.

The app stores only the financial data you enter directly.

None of this data is transmitted to Stonham Studios or any third party. It lives entirely on your device.

  • Pay frequency, pay amount, and last pay date
  • Budget category names and allocated amounts
  • Weekly check-in entries
  • Monthly history records
  • Income entries in variable-income mode
  • Reminder preferences

How Your Data Is Stored

All data is saved locally on your device using iOS's Application Support directory with complete file protection, Apple's highest level of at-rest encryption.

Data is never uploaded to a server, cloud service, or external system.

Device Permissions

G.Y.S.T. only uses device permissions when you enable the related feature. You can revoke permissions in iOS Settings.

Face ID, Touch ID, or passcode can lock the app for security. Biometric authentication uses Apple's LocalAuthentication framework, and no biometric data is stored by the app.

  • Calendar access creates a weekly Budget Check-In event only if enabled in Settings.
  • Notifications send weekly reminders only if enabled in Settings.
  • Face ID, Touch ID, or passcode can lock the app each time it reopens.

Third-Party Services

G.Y.S.T. does not use any third-party analytics, advertising, crash-reporting, or tracking services.

Data Sharing

Stonham Studios does not sell, share, or transfer G.Y.S.T. data. Because the app does not upload budgeting data, Stonham Studios does not have access to it.

Children's Privacy

G.Y.S.T. is not directed to children under 13 and does not knowingly collect information from children.

Deleting Your Data

You can delete all data at any time using the reset option within the app, or by deleting the app from your device.

Changes to This Policy

If this policy is updated, the revised version will be posted with an updated date. Continued use of the app constitutes acceptance of the updated policy.

Contact

Email: support@stonhamstudios.com

Company: Stonham Studios

Website: stonhamstudios.com