Comparison

iCardio Workout Tracker vs Heartool

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 train smarter by using your heart rate data. It tracks workouts, provides real-time feedback, and integrates with wearables and Apple Health to offer insights into your performance and progress.

Highlights
  • Heart rate zone tracking
  • GPS route mapping
  • Voice coaching
  • Apple Watch & Health integration
  • Real-time workout sharing
  • Custom fitness assessments
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

Heartool

Transform your phone into a fitness tracker to monitor workouts with live heart rate data. Analyze training progress with professional charts and gain insights into your health and cardio condition. Integrates with wearable devices and Apple Health.

Highlights
  • Live heart rate tracking
  • HRV biofeedback
  • Cardio health analysis
  • Workout progress charts
  • Calorie burned tracking
  • Health data synchronization
Read full description

Turn your phone into a fitness tracker with Heartool, to record your workouts with heart rate data. It is a concise and most accurate way to measure your training progress, to reach your fitness goals. Working with wearable devices to train in real time. For heart rate sensor recommend: www.fitcare.com Heartool gives you: 1.Tracking your live heart rate at right intensity for maximum results. With professional chart records, users could see their exercise effects when and after their training. 2.HRV biofeedback. Based on the heart rate sensor R-R interval data, together with professional algorithm, Heartool could help you to know your health and training status. 3.Cardio health condition. Based on the waveform (ECG) data and through the professional algorithm, Heartool could help you to discover hidden heart health hazards in time. HealthKit 1. Heartool Will share the record (heart rate) to the Apple's health applications after each exercise 2. Because the privacy of your health data is very important, the user must agree to authorize Apple Health in "Set up -> Authorization" in the Heartool APP before sharing the heart rate data to your Apple Health app. 3. Heartool Connect to a healthy feature supports iPhone 6 and above devices, and the system version is iOS9.0 and above. Main features: 1.Personalized heart rate zone setting, sync to the training sensor. 2.Calories burned checking based on the workouts. 3.Storing data import. If sensors not connected to the App, data could sync to the App after training. 4.Daily health management with cardio status and stress reflect. 5.Health data record, review a summary of the result from your entire workout history.

Screenshots

iCardio Workout Tracker4 screens
Heartool4 screens

Verdict

The call

The clearest difference is rating: iCardio Workout Tracker at 4.8 against Heartool's 3.1. iCardio Workout Tracker also leads on review sentiment (63% vs 21%) and update cadence (every 11 days vs every 4 months). Heartool's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 17.6). On price, ads and device support 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. Heartool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iCardio Workout Tracker holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: iCardio Workout Tracker has 3.4K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 63% of iCardio Workout Tracker's written reviews are positive against 21% of Heartool's.

UpkeepUpdate frequency

iCardio Workout Tracker ships an update every 11 days, Heartool every 4 months. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

Scorecard7 real differences · 3 level
iCardio Workout Tracker versus Heartool: the parameters behind the verdict, then further details
ParameteriCardio Workout TrackerHeartool
PriceFreeFree
Rating4.8 (3.4K ratings) — better3.1 (14 ratings)
Positive reviews63.4% of reviews — better21.2% of reviews
Number of ratings3.4K — better14
Update frequencyEvery 11 days — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.612.0 — better
Further details — not scored
Size85 MB24 MB
Age rating4+12+
DeveloperFitdigits IncShenzhen Onecoder Technology Co., Ltd.

Customer experience

iCardio Workout Tracker

All ratings3,366 ratings
Positive96.6%
Neutral1.2%
Negative2.3%
Written reviews290 reviews
Positive63.4%
Neutral6.6%
Negative30.0%

Heartool

All ratings14 ratings
Positive42.9%
Neutral14.3%
Negative42.9%
Written reviews52 reviews
Positive21.2%
Neutral9.6%
Negative69.2%

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

Heartool

Not enough reviews yet to summarise bugs or requests.

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
None

Heartool

No in-app purchases

Questions

Is iCardio Workout Tracker free?
iCardio Workout Tracker is free to download, with in-app purchases available.
Is Heartool free?
Heartool is free to download, with no in-app purchases.
Which has better reviews, iCardio Workout Tracker or Heartool?
iCardio Workout Tracker is rated higher. iCardio Workout Tracker averages 4.8 out of 5 from 3.4K ratings, while Heartool averages 3.1 from 14 ratings.
Do iCardio Workout Tracker or Heartool have ads?
Neither iCardio Workout Tracker nor Heartool shows ads.
Which is updated more often, iCardio Workout Tracker or Heartool?
iCardio Workout Tracker ships an update every 11 days, and Heartool every 4 months. Most recently, iCardio Workout Tracker was updated on September 23, 2026 and Heartool on September 18, 2026.

Other comparisons