# AU EngineCore vs OttavaBassa

The clearest difference is price: OttavaBassa at $3.99 against AU EngineCore's $22.99. OttavaBassa also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.6). On ads and in-app purchases there is nothing between them.

AU EngineCore costs $22.99 and OttavaBassa $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AU EngineCore | OttavaBassa |
| --- | --- | --- |
| Price | $22.99 | **$3.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 13 MB | 18 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Sorin TASU](https://appshunter.io/developer/1883473854) | [Rob Jackson](https://appshunter.io/developer/1072346998) |

## What reviewers say

### AU EngineCore

[App page](https://appshunter.io/ios/app/au-enginecore/id6766300671)

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

**In-app purchases:** none


### OttavaBassa

[App page](https://appshunter.io/ios/app/ottavabassa/id6803481561)

**In-app purchases:** none


## Frequently asked questions

### Is AU EngineCore free?

AU EngineCore costs $22.99, with no in-app purchases.

### Is OttavaBassa free?

OttavaBassa costs $3.99, with no in-app purchases.

### Do AU EngineCore or OttavaBassa have ads?

Neither AU EngineCore nor OttavaBassa shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*