# Passaggi vs Operabook

The clearest difference is price: Operabook at Free against Passaggi's $14.99. Operabook also leads on update cadence (every 5 months vs every 42 months). Passaggi's advantage is iOS requirement (11.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Operabook is free to download; Passaggi costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Passaggi ships an update every 42 months, Operabook every 5 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Passaggi | Operabook |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/passaggi/id1499123312/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 38 MB | 29 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Septenary Foundation](https://appshunter.io/developer/1499123311) | [IT4Culture](https://appshunter.io/developer/1403774308) |

## What reviewers say

### Passaggi

[App page](https://appshunter.io/ios/app/passaggi/id1499123312)

This app provides high-quality audio backing tracks for historical music performers to practice improvisation and ornamentation. It features adjustable tempo and pitch, user-defined looping, and historically accurate organ samples to enhance immersive study.

**Highlights:** High-quality audio backing tracks, Improvisation and ornamentation practice, Adjustable pitch and tempo, User-defined looping, Historically accurate organ samples, Complements historical treatises

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

**In-app purchases:** none


### Operabook

[App page](https://appshunter.io/ios/app/operabook/id6747315134)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Passaggi free?

Passaggi costs $14.99, with no in-app purchases.

### Is Operabook free?

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

### Do Passaggi or Operabook have ads?

Neither Passaggi nor Operabook shows ads.

### Which is updated more often, Passaggi or Operabook?

Passaggi ships an update every 42 months, and Operabook every 5 months. Most recently, Passaggi was updated on November 7, 2026 and Operabook on October 30, 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.*