# EndureIndex vs CardioWatch Pro

The clearest difference is update cadence: CardioWatch Pro at every 6 days against EndureIndex's every 3 weeks. CardioWatch Pro also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. EndureIndex sells 2 in-app purchases, starting at $1.99 per month and CardioWatch Pro sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

EndureIndex ships an update every 3 weeks, CardioWatch Pro every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | EndureIndex | CardioWatch Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cardiowatch-pro/id6762439345/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 8 MB | 30 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Danilo Krautz](https://appshunter.io/developer/1875731224) | [Shanghai Zen Mind Information Technology Co., Ltd.](https://appshunter.io/developer/1631507559) |

## What reviewers say

### EndureIndex

[App page](https://appshunter.io/ios/app/endureindex-training/id6760260948)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EndureIndex Pro Monthly | $1.99 | per month |
| EndureIndex Pro Yearly | $14.99 | per year |


### CardioWatch Pro

[App page](https://appshunter.io/ios/app/cardiowatch-pro/id6762439345)

This app analyzes your Apple Watch data to provide daily stress insights and heart rhythm information. It identifies patterns and trends in your body's signals, comparing them to your personal baseline for a unique perspective on your well-being.

**Highlights:** Daily stress state and timeline, Heart rate variability analysis, Morning recovery score, ECG waveform processing, Sleep and activity pattern correlation, Long-term health trend tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CardioWatch Pro | $9.99 | per month |
| CardioWatch Pro | $29.99 | per year |
| CardioWatch Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is EndureIndex free?

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

### Is CardioWatch Pro free?

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

### Do EndureIndex or CardioWatch Pro have ads?

Neither EndureIndex nor CardioWatch Pro shows ads.

### Which is updated more often, EndureIndex or CardioWatch Pro?

EndureIndex ships an update every 3 weeks, and CardioWatch Pro every 6 days. Most recently, EndureIndex was updated on October 24, 2026 and CardioWatch Pro on October 25, 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.*