Zone 2: Heart Rate Trainer

JIYULMOM

In-app purchases

About this app

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 Health Connect. 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
• Zone 2, VO2, and sleep trend charts
• Weekly history
• Adaptive Zone 2 weekly target

PREMIUM
• 7-day free trial — no charge during the trial, cancel anytime
• Monthly or annual subscription
• Unlock Weekly AI Coaching
• Complete longevity score

PRIVACY
• Health data is read directly from Health Connect 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

What’s new

First Android release. Zone 2 minutes, sleep, VO2 Max and resting heart rate from Health Connect, combined into one Longevity Score with weekly AI coaching.