Performance and stability improvements.

Performance and stability improvements.

Fixed Apple Watch zone alerts (beeps and voice cues) not playing reliably when the app or watch was in the background. Improved reliability of live heart rate delivery from the watch.

Voice cues: swap beeps for a spoken cue, pick a voice under cue style in the menu.

Apple Watch improvements: - Your watch now remembers your last zone, even after closing the app - Setting a zone on your phone now updates your watch automatically, and vice versa - whichever you touch last is the one that's used - Starting a session on either your phone or watch now starts it on both, so there's no need to tap start twice

Fixed an issue where ZoneLock couldn't detect a heart rate chest strap that was already connected via Bluetooth settings.

Fixed an issue where a heart rate monitor session could fail silently when Bluetooth was turned off, with no explanation shown.

Chest strap sessions no longer stop recording when your screen locks. Put your phone in your pocket and your workout keeps tracking, with zone alerts still firing. Apple Watch no longer requires a subscription. Train with your Watch for free. Also in this update: - Zone audio cues now briefly lower your music instead of competing with it - Zone cues now recover correctly after a phone call interrupts them - Workouts finished without a connection are now saved and sync once you're back online - Your history and zone setup now work offline - Rest days and readiness feedback are kept if you log them offline - Fixed Apple Watch sessions recording heart rate with the wrong timestamps, which could make time in zone inaccurate - Fixed a session occasionally being saved to history twice - New users now get a suggested zone from their calibration instead of one based on a single earlier session - Fixed Pro sometimes showing as inactive on Apple Watch - Fixed a rare error while scanning for a chest strap

- Fixed the Apple Watch timer freezing while the screen was off and resuming from where it stopped - Session duration on the watch summary now matches your actual workout - Ending a session no longer loses your workout if the strap disconnected or went out of range - Fixed a session being saved twice on a quick double tap - History now shows all your sessions, not just the last 20 - ZoneSignal refreshes when you return after changing Health permissions - Distinct haptics for above-zone and below-zone alerts - The return key now signs you in

ZoneLock 1.3.1 is a major update. ZoneSignal daily readiness Before every session, ZoneSignal reads your sleep, HRV, resting heart rate, and recent training load to recommend whether to push hard or ease off. Full-screen readiness page with plain-language explanations for each signal. Heart rate zone calibration Set up personalised training zones using the Karvonen method, refined by a submaximal fitness test. Includes health screening and safety disclaimer. Retest reminders as your fitness changes. Dark mode redesign Every screen has been rebuilt with a consistent dark aesthetic built for training environments. Android support ZoneLock is now available on Android with Health Connect integration for readiness scoring and heart rate zones. Share your sessions Share a session summary card with your training stats directly from session history. Reliability fixes Fixed a duplicate Apple Watch session bug. Watch sessions now persist natively and survive an app relaunch. Fixed Pro status flicker on launch. Fixed profile-load errors that could show a blank screen instead of redirecting to sign-in. Legal and safety Added medical disclaimer, terms, privacy policy, eligibility pages, 13+ age gate, and safety disclaimer before the fitness test.

ZoneLock just got a major upgrade. Heart Rate Zones. Set up your personal heart rate profile using your age or a guided calibration test. ZoneLock calculates your five training zones and lets you pick a zone before each session instead of setting BPM ranges manually. Dark Mode. The app is now fully redesigned with a dark interface built for training environments. Apple Watch Reliability. Session data from your Apple Watch now saves reliably even if the app was closed during your workout. Safety and Legal. New safety disclosures, age requirements, and legal pages have been added in compliance with App Store guidelines.

Improvements, and bug fixes.

• Sign in with Apple and Sign in with Google added for faster, easier account creation • ZoneLock Pro subscription with 7-day free trial unlocks session history, multiple zone presets, and Apple Watch support • Apple Watch companion app now included, train without your phone and sessions sync automatically when back in range • Session history to review past workouts • Performance and stability improvements