Fat Burn is the household name in fat burn in zone 2, but it's far from the only option. We track 240+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
Compare top Fat Burn In Zone 2 Apps (October 2026)
Optimize your workouts for fat loss by staying within your target heart rate zone. This app provides real-time guidance and tracks your progress to help you burn more fat and train smarter.
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)
What are the best fat burn in zone 2 apps for iPhone?
Fat Burn: Weight Loss Tracker tops our fat burn in zone 2 apps ranking as of October 2026, with a 4.6-star average from 41 App Store ratings, and it's free to download.
Are there free fat burn in zone 2 apps for iPhone?
Yes — 20 of the top fat burn in zone 2 apps we rank are free to download, including Fat Burn: Weight Loss Tracker and Zone2 — Heart Rate Zones.
Does Fat Burn: Weight Loss Tracker have ads or in-app purchases?
Fat Burn: Weight Loss Tracker has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
How many fat burn in zone 2 apps are on the App Store?
We track 240+ fat burn in zone 2 apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.