LockIN: Zone 2 Running

About

Premium unlocks two studio coach voices and the monthly health report. Everything needed to train — heart-rate coaching, plans, the field test, progress — is free. Heart rate requires an Apple Watch. On the Simulator or an iPhone without a paired watch, the run screen will wait for a heart-rate source. There is no account system, no sign-in, and no server. Nothing in the app is gated behind an identity, so no demo credentials are needed. HEALTHKIT HealthKit data is never uploaded to a server — LockIN has no backend and no network path for it. Heart rate, workouts, and routes are read from and written to HealthKit on the device; training data is stored locally in SwiftData. No HealthKit data is shared with third parties, sold, or used for advertising. The app's one third-party SDK is Sentry, for crash reporting, and it never receives HealthKit data: sendDefaultPii, attachScreenshot and attachViewHierarchy are disabled and tracing is zero, because a crash screenshot of the run screen would itself be heart-rate data. PERMISSIONS The Health and Apple Music screens explain why access is wanted and then always present the system permission sheet. Declining is available on Apple's own sheet; onboarding completes either way.