# Aura CO2 vs Krav Maga 16

Aura CO2 and Krav Maga 16 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Aura CO2 | Krav Maga 16 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 59 MB | 56 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Elichens](https://appshunter.io/developer/1538561088) | [SPORTIGO](https://appshunter.io/developer/1790225712) |

## What reviewers say

### Aura CO2

[App page](https://appshunter.io/ios/app/aura-co2/id1565190899)

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

**In-app purchases:** none


### Krav Maga 16

[App page](https://appshunter.io/ios/app/krav-maga-16/id6746473876)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Aura CO2 free?

Aura CO2 is free to download, with no in-app purchases.

### Is Krav Maga 16 free?

Krav Maga 16 is free to download, with no in-app purchases.

### Do Aura CO2 or Krav Maga 16 have ads?

Neither Aura CO2 nor Krav Maga 16 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.*