# Opus Great vs Classical Mood

The clearest difference is in-app purchases: Classical Mood at none against Opus Great's 4. Classical Mood also leads on update cadence (every 6 days vs every 7 months). Opus Great's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Opus Great sells 4 one-off in-app purchases. Classical Mood asks for nothing beyond the download.

Opus Great ships an update every 7 months, Classical Mood every 6 days. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Opus Great | Classical Mood |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/opus-great/id6499111554/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 15 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [昇 陈](https://appshunter.io/developer/1725916824) | [Yoojin Ko](https://appshunter.io/developer/6792308178) |

## What reviewers say

### Opus Great

[App page](https://appshunter.io/ios/app/opus-great/id6499111554)

Organize, search, and access your PDF sheet music library seamlessly across devices. Create custom collections, mark favorites, and enjoy a distraction-free reading experience designed for practice and performance.

**Highlights:** Organize PDF sheet music, Search by title or composer, Create custom music books, Syncs via iCloud, Smart PDF reader, Full-screen performance mode

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Water | $0.99 | one-time |
| Buy Me a Coffee | $1.99 | one-time |
| Buy Me a Cake | $3.99 | one-time |
| Lifetime Pro | $9.99 | one-time |


### Classical Mood

[App page](https://appshunter.io/ios/app/classical-mood/id6792308176)

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

**In-app purchases:** none


## Frequently asked questions

### Is Opus Great free?

Opus Great is free to download, with in-app purchases available.

### Is Classical Mood free?

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

### Do Opus Great or Classical Mood have ads?

Neither Opus Great nor Classical Mood shows ads.

### Which is updated more often, Opus Great or Classical Mood?

Opus Great ships an update every 7 months, and Classical Mood every 6 days. Most recently, Opus Great was updated on October 11, 2026 and Classical Mood on October 9, 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.*