Best Zones Cardio Apps

204+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated May 2026

Out of 204+ zones cardio apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Zones Cardio Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Zones CardioZones CardioFree5.0★ (2)NoYesSep 2026
2Zones for TrainingZones for TrainingFree4.8★ (19K)NoYesSep 2026
3Orange Zones Workout CompanionOrange Zones Workout CompanionFree4.4★ (1.1K)NoYesSep 2026
4FITIV Pulse - Workout TrackerFITIV Pulse - Workout TrackerFree4.6★ (13K)NoYesSep 2026
5Cardio Rings - HR Zone TrackerCardio Rings - HR Zone TrackerFree2.0★ (1)NoNoMay 2026
6Zone 2 Plus: Cardio FitnessZone 2 Plus: Cardio Fitness$1.99NoNoMay 2026
7Cardio Zones.Cardio Zones.$49.994.3★ (40)NoNoJun 2026
8Zone 2: Heart Rate TrainingZone 2: Heart Rate TrainingFree was $4.994.6★ (241)NoYesSep 2026

Top Picks for Zones Cardio

Zones Cardio#1

Zones Cardio by Redline Cardio, LLC

20-Minute Treadmill Workouts
Editor's Choice
💪 Health & Fitness
5.0(2 ratings)
FreeIn-App Purchases
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This app offers 20-minute treadmill workouts designed to maximize results using science-based heart rate variability training. It provides guided sessions for weight loss, fitness, and performance, making cardio more efficient and engaging.

Zones for Training#2

Zones for Training by Flask LLP

Heart Rate Zone Training
Strong Contender
💪 Health & Fitness
4.8😊(19K ratings)
FreeIn-App Purchases
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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

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

Room to Improve

  • 🐛 No after-sale support/service
  • 🐛 Inconsistent heart rate tracking
  • 🐛 Widgets not working after update
  • 🐛 Pauses workout when taking screenshots or using Siri
  • 🐛 Glitches causing data loss
  • 🐛 Inaccurate calorie/distance tracking
  • 🐛 Zones not matching between watch and phone
  • 🐛 Expensive for basic features
Orange Zones Workout Companion#3

Orange Zones Workout Companion by Bred Ventures Inc

Heart Rate Training & Cardio
Worth Considering
💪 Health & Fitness
4.4😐(1.1K ratings)
FreeIn-App Purchases
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This app uses your heart rate to personalize workouts, optimizing calorie burn and performance. Earn points for effort in high-intensity zones and track your progress in real-time with connected devices.

What We Love

  • 🚀 Seamless integration with Apple Watch
  • 👍 Accurate heart rate tracking
  • 🧡 Matches OTF color zones
  • 💰 Cost-effective alternative to OTF monitors
  • 🔋 Works well without additional hardware
  • 🤖 Responsive customer support

Room to Improve

  • 💰 Subscription model too expensive
  • 🐛 Connectivity issues with Apple Watch
  • 🔍 Limited data/history tracking
  • 🧭 Lacks live data on phone app
  • 🔢 Inaccurate calorie/zone calculations

More Zones Cardio apps to explore

FAQ about Zones Cardio

What are the best zones cardio apps for iPhone?
Zones Cardio tops our zones cardio apps ranking as of May 2026, with a 5.0-star average from 2 App Store ratings, and it's free to download.
Yes — 18 of the top zones cardio apps we rank are free to download, including Zones Cardio and Zones for Training.
Zones Cardio has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 204+ zones cardio apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
The short name for the app is Zones Cardio.
Each workout session in Zones Cardio is designed to be 20 minutes long, aiming to provide the benefits of a longer run.