Best ZeroEntropy alternatives: apps like ZeroEntropy

6+ similar apps compared and reviewed

4.2 avg rating
6 free apps
Updated October 2026

ZeroEntropy is great, but it's not the only option. Explore 6+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to ZeroEntropy

Box breathing assistant#2

Box breathing assistant by emmanuel orvain

Anti stress technique
Strong Contender
💪 Health & Fitness
4.8(125 ratings)
FreeIn-App Purchases
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This app guides you through a calming breathing technique to reduce stress and anxiety. It helps you control your breathing rhythm to improve focus and promote relaxation. Regular practice can lead to deeper relaxation and increased awareness of your diaphragm.

Zone 2: Heart Rate Training#3

Zone 2: Heart Rate Training by Shannon Bolick

VO2 Max, Cardio & HR Zones
Worth Considering
💪 Health & Fitness
4.6😊(243 ratings)
FreeIn-App Purchases
Zone 2: Heart Rate Training screenshot 1
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This app tracks your weekly workout time spent in Zone 2 heart rate, optimizing endurance and fat-burning. It connects with various Bluetooth heart rate monitors and Apple Watch for live feedback and integrates with existing workout data.

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)