Zone 2: Heart Rate Trainer
Jung Soon Shin · Health & Fitness
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Chart standing · US
What changed · US
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Start right away — no sign-up needed. Your data is saved to a private guest account; link Apple, Google or email in Settings to keep it across devices. Weekly totals now include workouts you log by hand, more screens are translated, and you can reset your password with an email code.
In-app purchases · US
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ALPEREN EYNALLI
About
Zone 2 training is the science-backed foundation of mitochondrial health, VO2 Max growth, and longevity. But "Zone 2 minutes" alone don't tell you whether you're actually building a longer healthspan. Zone 2 Longevity Coach computes a composite Longevity Score (0–100) from four weighted dimensions — Zone 2 minutes (40%), sleep (30%), VO2 Max (20%), and resting heart rate (10%) — pulled directly from Apple Health. Every week, an AI coach reads your data and produces a personalized summary plus three recommendations that are deliberately biased toward your weakest dimension, so each action moves your score the most. WHAT'S INSIDE • Composite Longevity Score with weighted breakdown across the four pillars • Personalized Zone 2 heart rate range via the Karvonen method (resting HR + age) • Weekly AI coaching summary written specifically against your week's data • 14-day Zone 2 minutes trend chart • Shareable weekly progress card sized for Instagram Stories • Pull-to-refresh on every tab APPLE WATCH • Standalone watchOS companion shows your week's Zone 2 progress • Watch complications for circular, rectangular, corner, and inline faces • Live ring updates against your personalized HR range, not a generic estimate HOME & LOCK SCREEN WIDGETS • Small home widget with weekly progress ring + today's minutes • Lock Screen rectangular, circular, and inline widgets • Refreshed hourly from the App Group PREMIUM • 7-day free trial — no charge during the trial, cancel anytime • Reminders 2 days and 1 day before renewal so you choose with intent • Weekly AI coaching, full longevity score breakdown, trend charts, share cards • Monthly or annual subscription PRIVACY • Health data is read directly from Apple Health on your device • No third-party analytics or ad SDKs • Account + all server-side data deletable from Settings This app is not a medical device. It does not diagnose, treat, or prevent any condition. Consult your physician before changing your training routine. Privacy Policy: https://ootssu.com/zone2/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What's new · 2.3.0
Start right away — no sign-up needed. Your data is saved to a private guest account; link Apple, Google or email in Settings to keep it across devices. Weekly totals now include workouts you log by hand, more screens are translated, and you can reset your password with an email code.
Details