Best apps like Zone 2 AI: Vo2 Max & Endurance

10+ similar apps compared and reviewed

4.6 avg rating
10 free apps
Updated September 2026

Zone 2 AI is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Zone 2 AI

Zone 2: Heart Rate Training#1

Zone 2: Heart Rate Training by Shannon Bolick

VO2 Max, Cardio & HR Zones
Editor's Choice
💪 Health & Fitness
4.6😊(241 ratings)
FreeIn-App Purchases
Zone 2: Heart Rate Training screenshot 1
Zone 2: Heart Rate Training screenshot 2
Zone 2: Heart Rate Training screenshot 3
Zone 2: Heart Rate Training screenshot 4
Zone 2: Heart Rate Training screenshot 5
Zone 2: Heart Rate Training screenshot 6

This app helps you track your weekly workout time spent in the Zone 2 heart rate range. It provides detailed tracking, connectivity with various heart rate monitors and Strava, and real-time feedback on your progress towards your fitness goals.

What We Love

  • 👍 Simple and intuitive user interface
  • ⏱️ Accurate real-time zone tracking during workouts
  • 📊 Comprehensive cumulative time tracking by zone
  • 🎯 Customizable heart rate zones and weekly goals
  • 🔗 Seamless integration with Apple Health and HR monitors
  • 📱 Large, easy-to-read display
  • 🎧 Audio alerts for zone changes
  • ⌚ Works effectively with Apple Watch
  • 🚀 Responsive developer with quick feature implementation
  • 💬 Excellent customer support from developer Shannon
  • 🎨 Polished and elegant design
  • 🔄 Background app functionality

Room to Improve

  • 🐛 Frequent Bluetooth disconnections from HR monitors
  • 🐛 App crashes and freezes mid-workout
  • 🐛 Tracking stops randomly during workouts
  • 📵 Portrait-only orientation (doesn't support landscape properly)
  • 💳 Pricing confusion and unexpected charges
  • 🔔 Excessive review prompts during workouts
  • ⚠️ Compatibility issues with some iPhone models
  • 📊 Zone calculation based on HRR instead of max HR percentage
  • 🎯 Mandatory Zone 2 goal that can't be disabled
  • ❌ Requires Apple Fitness subscription (according to one user)
VO2Max Training#3

VO2Max Training by Hesam Andalib

Improve your VO2 Max
Worth Considering
💪 Health & Fitness
4.5(8 ratings)
FreeIn-App Purchases
VO2Max Training screenshot 1
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VO2Max Training screenshot 4
VO2Max Training screenshot 5
VO2Max Training screenshot 6

Improve your cardiovascular fitness with science-backed training protocols and real-time coaching. Track your progress, visualize trends, and receive AI-powered insights to enhance your body's oxygen utilization for better health and longevity.

More apps like Zone 2 AI

4
Zone2 Fitness
Zone2 Fitness
Zone2 Fitness
Master your heart rate
Free

This app tracks your heart rate zones to help you reach fitness goals faster. It offers personalized progress reports, custom workouts, and detailed performance analytics. Optimize your training with data-driven insights and customizable goals.

5 Heart Rate Zones TrackerCustom workouts on Apple WatchPersonalized Progress Reports
💪 Health & Fitness
(1)
subscription
5
Simple Zones
Simple Zones
Simple Zones
Heart Rate Training Simplified
Free

Track your workouts in real-time using heart rate zone training. Get instant feedback on your performance to optimize intensity and achieve your fitness goals. Supports Apple Watch and Bluetooth heart rate monitors.

Real-time heart rate zone visualizationApple Watch and Bluetooth HRM supportCustomizable zone models
💪 Health & Fitness
(49)
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6
VO2 Max Pro: Track Fitness Age
VO2 Max Pro: Track Fitness Age
VO2 Max Pro: Track Fitness Age
Cardio Health, Longevity Stats
Free

This app tracks your VO2 max data from Apple Health, providing instant notifications for new readings. It visualizes your fitness trends and offers insights into your biological age based on your cardio health. Stay motivated and informed about your progress.

Instant VO2 Max NotificationsApple Health IntegrationTrends & Progress Tracking
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(32)
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7
Pace by Athlytic
Pace by Athlytic
Pace by Athlytic
Your health, explained
Free

This app analyzes your Apple Watch health data to provide clear, plain-language insights into your well-being. It monitors over 35 health signals, learns your personal baselines, and alerts you to significant changes, offering explanations and celebrating improvements without overwhelming you with raw numbers.

Reads Apple Watch health dataPlain-language health summariesMonitors 35+ health signals
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(40)
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8
Zolt: Energy and Macro Coach
Zolt: Energy and Macro Coach
Zolt: Energy and Macro Coach
Adaptive TDEE, Calorie Tracker
Free

This app provides intelligent, personalized coaching to help users achieve their fitness goals, whether it's losing fat, building muscle, or maintaining healthy habits. It uses an adaptive TDEE algorithm that adjusts calorie and macro targets daily based on individual progress, workouts, and recovery.

Adaptive TDEE and macro recalculationPersonalized calorie goals for cutting, bulking, or maintainingSmart food logging with AI and barcode scanning
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9
FivePointFive: Breathwork
FivePointFive: Breathwork
FivePointFive: Breathwork
Athlete Breathing Exercises
Free

Enhance athletic performance and recovery with science-backed breathwork exercises. This app offers guided sessions to improve focus, reduce stress, and deepen sleep, with real-time heart rate monitoring and personalized coaching insights.

Guided breathwork sessionsLive heart-rate monitoringAI Performance Coach
💪 Health & Fitness
(4.4K)
free with in-app purchases
10
HYBRD: Get Stronger & Faster
HYBRD: Get Stronger & Faster
HYBRD: Get Stronger & Faster
AI coach for hybrid athletes
Free

This app unifies your fitness tracking by syncing data from various devices and platforms. It generates personalized training plans to improve both strength and cardio, offering insights into your performance and progress.

Syncs data from Garmin, Apple Watch, WHOOP, StravaAI-powered workout loggingPost-workout metrics
💪 Health & Fitness
(712)
freemium