# O'Reilly vs Clefmap

The clearest difference is in-app purchases: O'Reilly at none against Clefmap's 1. O'Reilly also leads on ratings volume (34K vs 1). Clefmap's advantage is update cadence (daily vs fortnightly) and rating (5.0 vs 4.7). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Clefmap sells 1 one-off in-app purchase. O'Reilly asks for nothing beyond the download.

Clefmap holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: O'Reilly has 34K ratings behind it against 1, so its average is the more settled of the two.

O'Reilly ships an update fortnightly, Clefmap daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | O'Reilly | Clefmap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (34K ratings)](https://appshunter.io/ios/app/oreilly/id881697395/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clefmap-learn-to-read-music/id6805752244/reviews)** |
| Number of ratings | **34K** | 1 |
| Positive reviews | 46.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 65 MB | 13 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [O'Reilly Media, Inc.](https://appshunter.io/developer/312570215) | [OLIVER JAMES MORRIS](https://appshunter.io/developer/1886614962) |

## What reviewers say

### O'Reilly

[App page](https://appshunter.io/ios/app/oreilly/id881697395)

Access a vast library of tech books, videos, and courses to build in-demand skills. Stay current with the latest in programming, AI, cloud, and more. Learn on the go with offline downloads and progress syncing.

**Highlights:** Thousands of books, videos, and courses, Content on programming, AI, cloud, DevOps, cybersecurity, Audiobooks for multitasking, Live events and on-demand training, Playlists for content organization, Offline downloads and progress syncing, AI-powered search and overviews

**Features:** iMessage stickers, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great resource for learning
- 👍 Excellent content and library
- 💡 Helpful features like playlists
- 🚀 Offline reading and downloads

**What reviewers complain about**

- 🐛 Buggy app with crashes and issues
- 👎 Poor reading experience and navigation
- 🔒 Frequent login issues
- 👎 Inconsistent sync across devices

**Reported bugs**

- Frequent crashes and freezes
- Unreliable downloads and offline access
- Login issues and loss of progress
- Inconsistent behavior across updates

**Requested features**

- Improved bookmarking and note-taking
- Customizable text formatting and layout
- Better search and content discovery
- Seamless sync across devices


### Clefmap

[App page](https://appshunter.io/ios/app/clefmap-learn-to-read-music/id6805752244)

Learn to read music through interactive games and structured lessons. Progress from basic notes to complex concepts like scales and chords with a focus on connecting written notation to sound. Offers a comprehensive practice mode and helpful tools for musicians of all levels.

**Highlights:** 12 units and 71 lessons, 10 question types, 12 real tunes to play, Daily personalized practice, Reading speed trainer, Practice mode with full control, Playable piano and tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Course: All 12 Units | $8.99 | one-time |


## Frequently asked questions

### Is O'Reilly free?

O'Reilly is free to download, with no in-app purchases.

### Is Clefmap free?

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

### Which has better reviews, O'Reilly or Clefmap?

Clefmap is rated higher. O'Reilly averages 4.7 out of 5 from 34K ratings, while Clefmap averages 5.0 from 1 ratings.

### Do O'Reilly or Clefmap have ads?

Neither O'Reilly nor Clefmap shows ads.

### Which is updated more often, O'Reilly or Clefmap?

O'Reilly ships an update fortnightly, and Clefmap daily. Most recently, O'Reilly was updated on November 5, 2026 and Clefmap on October 31, 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.*