Best Czone 2 Apps

243+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated October 2026

With an average user rating of 4.5โ˜…, the czone 2 category is one of the App Store's strongest. Browse all 243+ apps we track, sorted so the most loved ones surface first.

Compare top Czone 2 Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Zone 2: Heart Rate TrainingZone 2: Heart Rate TrainingFree4.6โ˜… (241)NoYesOct 2026
2Zones for TrainingZones for TrainingFree4.8โ˜… (19K)NoYesOct 2026
3Slog: Zone 2 CardioSlog: Zone 2 CardioFreeโ€”โ€”NoJul 2026
4Zone 2 AI: Vo2 Max & EnduranceZone 2 AI: Vo2 Max & EnduranceFree4.5โ˜… (132)YesYesOct 2026
5Zone 2: Heart Rate TrainerZone 2: Heart Rate TrainerFreeโ€”NoYesOct 2026
6Zone2 FitnessZone2 FitnessFree3.7โ˜… (3)NoYesSep 2026
7Voodoo EventsVoodoo EventsFreeโ€”NoNoOct 2026
8Zone 2 - Fat loss & EnduranceZone 2 - Fat loss & EnduranceFreeโ€”NoYesSep 2026

Top Picks for Czone 2

Zone 2: Heart Rate Training#1
4.6๐Ÿ˜Š(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

  • ๐Ÿ‘ Simple and intuitive user interface
  • โฑ๏ธ Accurate real-time zone tracking during workouts
  • ๐Ÿ“Š Comprehensive cumulative time tracking by zone
  • ๐ŸŽฏ Customizable heart rate zones and weekly goals
  • ๐Ÿ”— Seamless integration with Apple Health and HR monitors
  • ๐Ÿ“ฑ Large, easy-to-read display
  • ๐ŸŽง Audio alerts for zone changes
  • โŒš Works effectively with Apple Watch
  • ๐Ÿš€ Responsive developer with quick feature implementation
  • ๐Ÿ’ฌ Excellent customer support from developer Shannon
  • ๐ŸŽจ Polished and elegant design
  • ๐Ÿ”„ Background app functionality

Room to Improve

  • ๐Ÿ› Frequent Bluetooth disconnections from HR monitors
  • ๐Ÿ› App crashes and freezes mid-workout
  • ๐Ÿ› Tracking stops randomly during workouts
  • ๐Ÿ“ต Portrait-only orientation (doesn't support landscape properly)
  • ๐Ÿ’ณ Pricing confusion and unexpected charges
  • ๐Ÿ”” Excessive review prompts during workouts
  • โš ๏ธ Compatibility issues with some iPhone models
  • ๐Ÿ“Š Zone calculation based on HRR instead of max HR percentage
  • ๐ŸŽฏ Mandatory Zone 2 goal that can't be disabled
  • โŒ Requires Apple Fitness subscription (according to one user)
Zones for Training#2

Zones for Training by Flask LLP

Heart Rate Zone Training
4.8๐Ÿ˜Š(19K ratings)
FreeIn-App Purchases
Zones for Training screenshot 1
Zones for Training screenshot 2
Zones for Training screenshot 3
Zones for Training screenshot 4
Zones for Training screenshot 5
Zones for Training screenshot 6

This app helps you optimize your workouts by monitoring exercise intensity and visualizing it through heart rate zones. It supports over 70 workout types and provides detailed insights into your performance, all accessible on your Apple Watch and iPhone.

What We Love

  • ๐Ÿ‘ Seamless integration with Apple Watch
  • ๐Ÿ‘ Helpful for daily stats and weekly/monthly comparisons
  • ๐Ÿ‘ Motivating haptic feedback on Apple Watch
  • ๐Ÿ‘ Well-designed app with nice interface
  • ๐Ÿ‘ Useful for getting fit
  • ๐Ÿ‘ Mirrors Health data reliably
  • ๐Ÿ‘ Extends Health data in useful ways
  • ๐Ÿ‘ Presents total exercise in a helpful way
  • ๐Ÿ‘ Works great with SmartRow
  • ๐Ÿ‘ Easy and fun to use
  • ๐Ÿ‘ Syncs beautifully
  • ๐Ÿ‘ Helps keep on track
  • ๐Ÿ‘ Detailed and motivating stats
  • ๐Ÿ‘ Simple but effective
  • ๐Ÿ‘ Large heart rate numbers easy to see
  • ๐Ÿ‘ Customizable heart rate zones
  • ๐Ÿ‘ Provides useful insights and data analysis

Room to Improve

  • ๐Ÿ› No after-sale support/service
  • ๐Ÿ› Inconsistent heart rate tracking
  • ๐Ÿ› Widgets not working after update
  • ๐Ÿ› Pauses workout when taking screenshots or using Siri
  • ๐Ÿ› Glitches causing data loss
  • ๐Ÿ› Inaccurate calorie/distance tracking
  • ๐Ÿ› Zones not matching between watch and phone
  • ๐Ÿ› Expensive for basic features

More Czone 2 apps to explore

FAQ about Czone 2

What are the best czone 2 apps for iPhone?
Zone 2: Heart Rate Training tops our czone 2 apps ranking as of October 2026, with a 4.6-star average from 241 App Store ratings, and it's free to download.
Yes โ€” 19 of the top czone 2 apps we rank are free to download, including Zone 2: Heart Rate Training and Zones for Training.
Zone 2: Heart Rate Training has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 243+ czone 2 apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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