# Cardiac Surgery Basics vs Surface Eye

The clearest difference is iOS requirement: Cardiac Surgery Basics at 8.0 against Surface Eye's 15.1. 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 | Cardiac Surgery Basics | Surface Eye |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 208 MB | 47 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [B. Braun Melsungen AG](https://appshunter.io/developer/391340906) | [Terragene](https://appshunter.io/developer/1529466887) |

## What reviewers say

### Cardiac Surgery Basics

[App page](https://appshunter.io/ios/app/cardiac-surgery-basics/id1457195207)

**In-app purchases:** none


### Surface Eye

[App page](https://appshunter.io/ios/app/surface-eye/id1604592632)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cardiac Surgery Basics free?

Cardiac Surgery Basics is free to download, with no in-app purchases.

### Is Surface Eye free?

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

### Do Cardiac Surgery Basics or Surface Eye have ads?

Neither Cardiac Surgery Basics nor Surface Eye 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.*