# CardiacZone vs TB HDL

The clearest difference is iOS requirement: CardiacZone at 14.2 against TB HDL's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | CardiacZone | TB HDL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 11 MB | 150 MB |
| Requires iOS | **14.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Tahir Hamid](https://appshunter.io/developer/1734113247) | [Contech International](https://appshunter.io/developer/1281879642) |

## What reviewers say

### CardiacZone

[App page](https://appshunter.io/ios/app/cardiaczone/id6478835950)

**Features:** macOS Compatibility

**In-app purchases:** none


### TB HDL

[App page](https://appshunter.io/ios/app/tb-hdl/id6480371209)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CardiacZone free?

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

### Is TB HDL free?

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

### Do CardiacZone or TB HDL have ads?

Neither CardiacZone nor TB HDL shows ads.

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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.*