# EOC Precise HBR vs CardioTrials.AI

The clearest difference is in-app purchases: EOC Precise HBR at none against CardioTrials.AI's 4. CardioTrials.AI's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CardioTrials.AI sells 4 in-app purchases, starting at $4.99 per month. EOC Precise HBR asks for nothing beyond the download.

EOC Precise HBR ships an update every 2 weeks, CardioTrials.AI every 4 days. The most recent releases landed on October 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | EOC Precise HBR | CardioTrials.AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 1 MB | 5 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Ente Ospedaliero Cantonale](https://appshunter.io/developer/1321293362) | [Kenneth Guber, M.D. LLC](https://appshunter.io/developer/1860110576) |

## What reviewers say

### EOC Precise HBR

[App page](https://appshunter.io/ios/app/eoc-precise-hbr/id6741797120)

**Features:** macOS Compatibility

**In-app purchases:** none


### CardioTrials.AI

[App page](https://appshunter.io/ios/app/cardiotrialsai/id6757679353)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fellow Tier | $4.99 | per month |
| Attending Tier | $19.99 | per month |
| Stat Consult | $2.99 | one-time |
| Grant Funding | $9.99 | one-time |


## Frequently asked questions

### Is EOC Precise HBR free?

EOC Precise HBR is free to download, with no in-app purchases.

### Is CardioTrials.AI free?

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

### Do EOC Precise HBR or CardioTrials.AI have ads?

Neither EOC Precise HBR nor CardioTrials.AI shows ads.

### Which is updated more often, EOC Precise HBR or CardioTrials.AI?

EOC Precise HBR ships an update every 2 weeks, and CardioTrials.AI every 4 days. Most recently, EOC Precise HBR was updated on October 4, 2026 and CardioTrials.AI on October 28, 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.*