# Cardio Chart vs HeartBond

The clearest difference is update cadence: HeartBond at every 2 days against Cardio Chart's every 25 months. HeartBond also leads on device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Cardio Chart against 5.0 for HeartBond. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Cardio Chart ships an update every 25 months, HeartBond every 2 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cardio Chart | HeartBond |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/cardio-chart/id1180616397/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/heartbond/id6449156557/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 0 MB | 11 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Clever Armadillo LLC](https://appshunter.io/developer/570999114) | [Daniel Zhang](https://appshunter.io/developer/1687853569) |

## What reviewers say

### Cardio Chart

[App page](https://appshunter.io/ios/app/cardio-chart/id1180616397)

Visualize your heart rate during workouts with detailed graphs. Track maximum and average heart rates to understand exercise impact. Requires heart rate data recorded to the Health app.

**Highlights:** Heart rate workout graphs, Maximum heart rate display, Average heart rate display, Health app integration, Workout data visualization

**In-app purchases:** none


### HeartBond

[App page](https://appshunter.io/ios/app/heartbond/id6449156557)

Visualize your heart rate, HRV, and sleep stages with this free companion app. Seamlessly sync data between your iPhone and Mac, with intuitive gestures and customizable interfaces. Track your health journey across your Apple ecosystem.

**Highlights:** Heart Rate & HRV Insights, Sleep Stage Visualization, Weight Tracking, Smart Sync Control, Apple Ecosystem Integration, Customizable Interface, Dark Mode Support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cardio Chart free?

Cardio Chart is free to download, with no in-app purchases.

### Is HeartBond free?

HeartBond is free to download, with no in-app purchases.

### Which has better reviews, Cardio Chart or HeartBond?

Cardio Chart and HeartBond are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Cardio Chart or HeartBond have ads?

Neither Cardio Chart nor HeartBond shows ads.

### Which is updated more often, Cardio Chart or HeartBond?

Cardio Chart ships an update every 25 months, and HeartBond every 2 days. Most recently, Cardio Chart was updated on October 29, 2026 and HeartBond on October 30, 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.*