# iCardio Workout Tracker vs CardioEngine

The clearest difference is iOS requirement: iCardio Workout Tracker at 17.6 against CardioEngine's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

iCardio Workout Tracker ships an update every 11 days, CardioEngine every 9 days. Both last shipped on October 19, 2026.

## The numbers

| Metric | iCardio Workout Tracker | CardioEngine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.4K ratings)](https://appshunter.io/ios/app/icardio-workout-tracker/id314841648/reviews)** | — |
| Number of ratings | **3.4K** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 85 MB | 9 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Fitdigits Inc](https://appshunter.io/developer/1126857444) | [Feeling Mindful Labs LLC](https://appshunter.io/developer/1716689922) |

## What reviewers say

### iCardio Workout Tracker

[App page](https://appshunter.io/ios/app/icardio-workout-tracker/id314841648)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Star Monthly | $4.99 | per month |
| Pro Plus | $24.99 | per year |
| Star | $29.99 | per year |
| Plus | $6.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


### CardioEngine

[App page](https://appshunter.io/ios/app/cardioengine-hr-zone-training/id6761030036)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CardioEngine Full Access | $29.99 | one-time |


## Frequently asked questions

### Is iCardio Workout Tracker free?

iCardio Workout Tracker is free to download, with in-app purchases available.

### Is CardioEngine free?

CardioEngine is free to download, with in-app purchases available.

### Do iCardio Workout Tracker or CardioEngine have ads?

Neither iCardio Workout Tracker nor CardioEngine shows ads.

### Which is updated more often, iCardio Workout Tracker or CardioEngine?

iCardio Workout Tracker ships an update every 11 days, and CardioEngine every 9 days. Most recently, iCardio Workout Tracker was updated on October 19, 2026 and CardioEngine on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*