# EDAO vs Octave Projet Voltaire

The clearest difference is iOS requirement: Octave Projet Voltaire at 12.0 against EDAO's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | EDAO | Octave Projet Voltaire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 79 MB | 44 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ecole de l'Art Oratoire](https://appshunter.io/developer/1549040202) | [Woonoz SAS](https://appshunter.io/developer/441061315) |

## What reviewers say

### EDAO

[App page](https://appshunter.io/ios/app/edao/id1549040200)

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

**In-app purchases:** none


### Octave Projet Voltaire

[App page](https://appshunter.io/ios/app/octave-projet-voltaire/id6499595366)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EDAO free?

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

### Is Octave Projet Voltaire free?

Octave Projet Voltaire is free to download, with no in-app purchases.

### Do EDAO or Octave Projet Voltaire have ads?

Neither EDAO nor Octave Projet Voltaire shows ads.

### Which is updated more often, EDAO or Octave Projet Voltaire?

EDAO ships an update every 2 months, and Octave Projet Voltaire every 2 months. Most recently, EDAO was updated on September 29, 2026 and Octave Projet Voltaire on September 11, 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.*