Comparison

iCardio Workout Tracker vs Zones for Training

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iCardio Workout Tracker

This app helps you understand and improve your fitness by tracking your heart rate during workouts. It offers real-time feedback, GPS mapping, and integrates with other health apps and devices for comprehensive wellness tracking.

Highlights
  • Heart rate zone tracking
  • GPS route mapping
  • Voice coaching
  • Apple Health integration
  • Customizable workout screens
  • LiveTracking for sharing
Features
Read full description

iCardio – Smarter Heart Rate Training (Supports Bluetooth sensors, Apple Watch & Apple Health, and now AirPods Pro G3!) Track, train, and transform your fitness with iCardio, your all-in-one heart rate training companion. Whether you’re walking, running, cycling, or doing your favorite studio workout, iCardio helps you understand your heart, improve performance, and stay motivated. Train with Precision iCardio turns your heart rate into a powerful training tool. See your heart rate zones live as you work out, get instant feedback, and optimize every session to reach your goals faster — whether you’re training for endurance, weight loss, or general fitness. Connected Fitness, Simplified iCardio integrates seamlessly with Apple Watch and Apple Health, automatically syncing your workouts, calories, and key metrics like: * Heart Rate & Zones * Heart Rate Variability (HRV) * Resting Heart Rate Use iCardio as your fitness hub to bring together data from all your favorite Health-connected apps and devices — making it easier to track your overall wellness in one place. Comprehensive Tracking * GPS route mapping for outdoor workouts * Steps, calories, cadence, and power tracking * Custom Fitness Assessments to personalize zones * Routes & Routines to measure progress over time Key Features * Voice Coaching: Real-time cues to keep you on target * LiveTracking: Share your workout progress in real time * Goal Setting: Define and track personal fitness goals * Advanced Graphs & Analytics: Visualize heart rate, pace, and more * Web Sync: Review your data anytime, anywhere* Sleep, Weight, and Blood Pressure Device Compatibility Works with Apple Watch, Apple Health, and most Bluetooth fitness sensors — including Polar, Wahoo, Scosche, Viiiiva, POWR LABS, CooSpo, OrangeTheory, Garmin, and Moofit. Also supports power meters, cadence sensors, and Peloton® bikes. Free Features * Basic heart rate tracking * GPS & route tracking * Customizable voice coaching * Health metrics (weight, sleep, blood pressure) * Sync with Apple Health STAR Membership Unlock deeper insights with STAR Membership ($4.99/month or $29.99/year): * Advanced heart rate zone analysis * Speed and cadence sensor support * Personalized Fitness Assessments * Routes & Routines tracking * LiveTracking for real-time sharing * Group and community data sharing Subscription Details Payment is charged to your iTunes Account at purchase confirmation. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. Renewal is billed within 24 hours before renewal at $29.99/year or $4.99/month. Any unused trial period is forfeited upon subscription purchase. Manage or cancel your subscription in your Account Settings at any time. Privacy Policy: fitdigits.com/privacy-policy.html Terms of Use: fitdigits.com/terms-and-conditions.html* Ad-free experience and more Train smarter. Recover better. Live stronger. Download iCardio today and make every heartbeat count.

About

Zones for Training

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.

Highlights
  • Real-time exercise intensity and heart rate monitoring
  • Time spent in four heart rate zones
  • Total workout dashboard from Apple Health
  • Heart rate zone alerts via Apple Watch taps
  • Recovery heart rate measurement
  • Detailed workout data and insights
  • Widget support for workout summaries
Features
Read full description

Get the most out of your Apple Watch! Zones monitors your exercise intensity and visualize it in meaningful ways. Know your activities and be smart about how you work out. Zones supports over 70 types of workouts like Running, Walking, Cycling, Treadmill, Exercise Bike, and Strength Training. Great for outdoor/indoor/gym workouts. Measure it on your Apple Watch, review it on your iPhone. Efficient workouts with Zones! ------------------------------------------------ ■ Features ------------------------------------------------ ◎ Monitor real-time exercise intensity and heart rate during workouts. (Apple Watch only) ◎ Show your time spent in the four Heart Rate Zones. ◎ Display all workouts data from the Apple Health app, so that you can use Zones as a total workouts dashboard. ------------------------------------------------ ■ Training With Heart Rate Zones ------------------------------------------------ Everybody has a different purpose for their training. Someone run for diet, someone ride for improving their cardio endurance. Exercising at the correct intensity can help you get the most out of your workouts. This app shows you your exercise intensity using your real-time heart rate, and it has four heart rate zones to understand your exercise intensity at a glance. • PEAK - for improving performance and speed. • CARDIO - for improving cardio endurance. • FAT BURN - For longer exercise. Predominantly uses fat for energy. • WARM UP - For preparation and recovery. With these four zones, you can start heart rate training very easily and quickly. You don't have to remember your target heart rate or intensity %. ------------------------------------------------ ■ Measuring with Apple Watch ------------------------------------------------ ◎ Heart Rate and Exercise Intensity in real-time • You can easily see which Heart Rate Zone you are in while exercise. • Your Apple Watch taps you on the wrist when heart rate zone changes. • Automatic pause/resume function (Running only) ◎ Review your improvements with Recovery Heart Rate Recovery Heart Rate is the difference between your exercising heart rate and your heart rate one minutes after the exercise has stopped. It is a good indicator to gauge your fitness level! This app measures it automatically right after your workouts. (Over CARDIO intensities only) ◎ Leave your iPhone at home You can leave your iPhone at home when you go for training! ※ Measurement function is only available on the Apple Watch. ------------------------------------------------ ■ Detailed Information of Your Workouts ------------------------------------------------ ◎ Details of Workout • Duration • Active Calories • Distance, Pace, Splits • Time in heart rate zones • Heart Rate and Exercise Intensity (Average, min/max heart rate) • Graphs of heart rate and pace • Show your workout on Widgets ◎ Insights (Graphs & Lists) • Recent Workouts • Weekly Calories Burned • Top 10 Distance • Running Pace ------------------------------------------------ ■ Many Ways to Use Zones ------------------------------------------------ ◎ Supports over 70 types of workouts Running, Walking, Cycling, Core Training, Flexibility, Strength Training... and so on! ◎ Works great with other apps through the Apple Health Zones reads all Workouts data from the Apple Health app, so you can use Zones as a total workouts dashboard. In this way, you can continue using the apps you already love. Of course, you can see your workouts data from Apple Workouts app in Zones. ◎ Upgrade to PRO • Stats (Weekly, Monthly, Yearly) • Create & customize Insights • Change Heart Rate Zones • Create Custom Workouts (5 Zones) • Edit Workout Name ------------------------------------------------ ■ Required Device ------------------------------------------------ Apple Health is required to use. For iPad, please update your OS to iPadOS 17 or higher.

Screenshots

iCardio Workout Tracker4 screens
Zones for Training4 screens

Verdict

The call

The clearest difference is update cadence: iCardio Workout Tracker at every 11 days against Zones for Training's every 4 weeks. Zones for Training's advantage is ratings volume (19K vs 3.4K). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iCardio Workout Tracker sells 4 in-app purchases, starting at $4.99 per month and Zones for Training sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for iCardio Workout Tracker against 4.8 for Zones for Training. That said, the two scores are not equally well evidenced: Zones for Training has 19K ratings behind it against 3.4K, so its average is the more settled of the two. Written reviews are what separate them: 63% of iCardio Workout Tracker's written reviews are positive against 69% of Zones for Training's.

UpkeepUpdate frequency

iCardio Workout Tracker ships an update every 11 days, Zones for Training every 4 weeks. Both last shipped on November 1, 2026.

Scorecard2 real differences · 8 level
iCardio Workout Tracker versus Zones for Training: the parameters behind the verdict, then further details
ParameteriCardio Workout TrackerZones for Training
PriceFreeFree
Rating4.8 (3.4K ratings) — better4.8 (19K ratings)
Positive reviews63.2% of reviews69.1% of reviews — better
Number of ratings3.4K19K — better
Update frequencyEvery 11 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS17.617.6
Further details — not scored
Size86 MB40 MB
Age rating4+4+
DeveloperFitdigits IncFlask LLP

Customer experience

iCardio Workout Tracker

All ratings3,366 ratings
Positive96.6%
Neutral1.2%
Negative2.3%
Written reviews291 reviews
Positive63.2%
Neutral6.5%
Negative30.2%

Zones for Training

All ratings19,129 ratings
Positive95.4%
Neutral2.1%
Negative2.4%
Written reviews861 reviews
Positive69.1%
Neutral8.2%
Negative22.6%

User reviews

iCardio Workout Tracker

From 3.4K App Store ratings

What we love

  • 👍 Great app
  • 🚀 Accurate tracking
  • 💡 Customizable screens
  • 🚀 Reliable connection
  • 👍 Motivating

Room to improve

  • 🐛 Crashes and sync issues
  • 🔋 Battery drain
  • 🔒 Subscription model
  • 🐛 Inconsistent performance
  • 🐛 Sensor connection problems

Zones for Training

From 19K App Store ratings

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

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

Bugs and requests

iCardio Workout Tracker

Reported bugs

3 issues
  • Garmin ANT+ connectivity issues
  • Incorrect calorie/distance tracking
  • Unreliable heart rate monitoring

Requested features

5 requests
  • Lap/split time tracking
  • Multi-user profiles
  • Treadmill/elliptical integration
  • More customization options
  • Improved Apple Watch integration

Zones for Training

Reported bugs

5 issues
  • Heart rate not recording properly
  • Workout data not syncing correctly
  • Workouts pausing unexpectedly
  • Inability to delete or edit past workouts
  • Inconsistent calorie/distance tracking

Requested features

9 requests
  • Ability to edit past workouts
  • Option to customize moderate and vigorous intensity zones
  • Widgets for active score and zone time
  • Ability to set zone-specific goals
  • Option to disable zone change vibrations
Show 4 more
  • Dashboard on phone app while tracking on watch
  • Support for Heart Rate Reserve (HRR) zones
  • Large widget for monthly/yearly stats
  • Voice activation for zone changes

In-app purchases

4 purchases

iCardio Workout Tracker

Subscriptions3
  • Star Monthly$4.991 Month
  • Pro Plus$24.991 Year
  • Star$29.991 Year
One-time1
  • Plus$6.99
1 purchases

Zones for Training

One-time1
  • PRO$7.99

Questions

Is iCardio Workout Tracker free?
iCardio Workout Tracker is free to download, with in-app purchases available.
Is Zones for Training free?
Zones for Training is free to download, with in-app purchases available.
Which has better reviews, iCardio Workout Tracker or Zones for Training?
iCardio Workout Tracker is rated higher. iCardio Workout Tracker averages 4.8 out of 5 from 3.4K ratings, while Zones for Training averages 4.8 from 19K ratings.
Do iCardio Workout Tracker or Zones for Training have ads?
Neither iCardio Workout Tracker nor Zones for Training shows ads.
Which is updated more often, iCardio Workout Tracker or Zones for Training?
iCardio Workout Tracker ships an update every 11 days, and Zones for Training every 4 weeks. Most recently, iCardio Workout Tracker was updated on November 1, 2026 and Zones for Training on November 1, 2026.

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