LockIN: Zone 2 Running

Run easy. Build your engine.

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

Most runs are supposed to feel easy. LockIN watches your heart rate and tells you the moment you drift, so easy days build fitness instead of quietly costing it. 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.

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The developer, Ryan Bergeron, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Ryan Bergeron
    Size
    • 17 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.0 or later.
    Location
    • This app may use your location even when it isn’t open, which can decrease device battery life.
    Languages
    • English
    Age Rating
    9+
    In-App Purchases
    Yes
    • LockIN Premium $5.99
    • Lifetime Premium $99.99
    • Premium Annual $39.99
    Copyright
    • © 2026 Ryan Bergeron