# Eduarth vs Centro Ottava

The clearest difference is update cadence: Centro Ottava at daily against Eduarth's every 3 weeks. Eduarth's advantage is iOS requirement (13.0 vs 15.6). 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.

Eduarth ships an update every 3 weeks, Centro Ottava daily. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Eduarth | Centro Ottava |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 18 MB | 0 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [74 S.R.L.](https://appshunter.io/developer/1380123800) | [Pietro Paolo Levato](https://appshunter.io/developer/1807104193) |

## What reviewers say

### Eduarth

[App page](https://appshunter.io/ios/app/eduarth/id1438544854)

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

**In-app purchases:** none


### Centro Ottava

[App page](https://appshunter.io/ios/app/centro-ottava/id6744328332)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eduarth free?

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

### Is Centro Ottava free?

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

### Do Eduarth or Centro Ottava have ads?

Neither Eduarth nor Centro Ottava shows ads.

### Which is updated more often, Eduarth or Centro Ottava?

Eduarth ships an update every 3 weeks, and Centro Ottava daily. Most recently, Eduarth was updated on October 3, 2026 and Centro Ottava on October 8, 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.*