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Updated October 5, 2026. StackWorks uses no advertising, analytics SDK, custom server or account.
Weight, body-fat percentage, phases, goals, photos, notes and settings remain in app-private device storage. Cloud synchronization and OS cloud backups are disabled. Imported photos are normalized without location or other image metadata. Device authentication is used for the optional photo lock; StackWorks does not receive biometrics or passcodes.
Health Connect reads weight and body-fat data only after permission. Historical access is separately requested where supported. Writing manually entered weight and body fat is optional and disabled by default. Health data is not sent to StackWorks or Billing. Permissions can be revoked in Health Connect. Removing app records does not remove the original Health Connect records.
Camera access, reminders and user-selected sharing are optional. Widgets show a summary, never photos. Google Play Billing 9.1.0 handles purchases and restoration and may send diagnostics, app/device information and session identifiers to Google. StackWorks does not receive card details or provide health records or photos to Billing.
Delete app records and photos in Settings or uninstall the app. Health Connect records and Google Play purchases are managed separately. The independent sample does not alter ordinary records, purchases, Health Connect, notifications or home-screen widgets. External links open through the selected browser.