# iWriteMusic Pro SE vs Chordio

The clearest difference is in-app purchases: iWriteMusic Pro SE at none against Chordio's 19. iWriteMusic Pro SE also leads on ratings volume (207 vs 8). Chordio's advantage is update cadence (every 8 days vs every 4 weeks) and review sentiment (62% vs 53%). On price, rating, ads and device support there is nothing between them.

Both are free to download. Chordio sells 19 one-off in-app purchases. iWriteMusic Pro SE asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for iWriteMusic Pro SE against 4.4 for Chordio. That said, the two scores are not equally well evidenced: iWriteMusic Pro SE has 207 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 53% of iWriteMusic Pro SE's written reviews are positive against 62% of Chordio's.

iWriteMusic Pro SE ships an update every 4 weeks, Chordio every 8 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iWriteMusic Pro SE | Chordio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (207 ratings)](https://appshunter.io/ios/app/iwritemusic-pro-se/id490925777/reviews)** | [4.4 (8 ratings)](https://appshunter.io/ios/app/chordio-compose-and-learn-music/id1580214821/reviews) |
| Number of ratings | **207** | 8 |
| Positive reviews | 53.2% of reviews | **61.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 203 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPad | **iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [iWriteMusicProject](https://appshunter.io/developer/393551666) | [One In A Billion Ltd](https://appshunter.io/developer/479881389) |

## What reviewers say

### iWriteMusic Pro SE

[App page](https://appshunter.io/ios/app/iwritemusic-pro-se/id490925777)

Create beautiful, professional-quality sheet music with an intuitive interface. This app offers efficient input systems, comprehensive notation tools, and useful playback options for musicians of all levels.

**Highlights:** Intuitive user interface, Efficient input systems (One-Flick & Traditional), Professional quality sheet music, Comprehensive notation elements, Useful playback options, Export to PDF, JPG, and MIDI

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 💡 Helpful for music writing
- 👍 Useful for music teachers
- 🚀 Functional free version
- 👍 Good for small-scale composition

**What reviewers complain about**

- 🐛 Crashes frequently
- 🔧 Unintuitive interface
- 🔧 Difficult to navigate
- 🐛 Playback issues
- 🔧 Fiddly note placement

**Reported bugs**

- Incorrect transposition of notes
- Inability to save compositions
- Overlapping/unreadable menu text
- Freezing when trying to copy/paste
- Inconsistent behavior when adding new measures

**Requested features**

- Add more music notation options (e.g. glissando, ghost notes)
- Improve playback to follow dynamics and expressions
- Allow multiple key signatures in the same piece
- Provide an undo/redo function
- Implement a chord entry mode for guitarists


### Chordio

[App page](https://appshunter.io/ios/app/chordio-compose-and-learn-music/id1580214821)

This app is a music composition and theory tool that helps musicians explore chords and scales interactively. It offers features for creating, storing, and rearranging chord progressions, along with integrated music theory lessons and practice tools. It's designed to spark creativity and enhance music learning for producers, composers, and educators.

**Highlights:** Chord progression generator, Custom chord creation and editing, Real-time MIDI input visualization, Scales and modes practice, Music theory lessons and quizzes, Sheet music practice tools, Chord Suggestion AI

**Features:** Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free Chord Pack | Free | one-time |
| Gymnopedie No.1 | $1.99 | one-time |
| Arabesque No.1 | $1.99 | one-time |
| Gnossienne No.1 | $1.99 | one-time |
| Chord Progressions 251 No.1 | $2.99 | one-time |
| Jazz Progressions 01 | $5.99 | one-time |
| Neo-Soul Progressions 01 | $5.99 | one-time |
| Neo-Soul Tunes 01 | $5.99 | one-time |
| RnB Chords No.1 | $5.99 | one-time |
| Classical Progressions 1 | $5.99 | one-time |
| II-V-I Progression | $5.99 | one-time |
| RnB Progressions 01 | $5.99 | one-time |
| Beginner Essentials | $6.99 | one-time |
| RnB Progressions, Vol. 1 | $7.99 | one-time |
| II-V-I Jazz Progressions | $9.99 | one-time |
| Jazz Progression, Vol. 1 | $9.99 | one-time |
| Jazz Lick Exercises, Vol. 1 | $9.99 | one-time |
| Classical Collection, Vol. 1 | $14.99 | one-time |
| Unlock App | $14.99 | one-time |


## Frequently asked questions

### Is iWriteMusic Pro SE free?

iWriteMusic Pro SE is free to download, with no in-app purchases.

### Is Chordio free?

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

### Which has better reviews, iWriteMusic Pro SE or Chordio?

iWriteMusic Pro SE is rated higher. iWriteMusic Pro SE averages 4.5 out of 5 from 207 ratings, while Chordio averages 4.4 from 8 ratings.

### Do iWriteMusic Pro SE or Chordio have ads?

Neither iWriteMusic Pro SE nor Chordio shows ads.

### Which is updated more often, iWriteMusic Pro SE or Chordio?

iWriteMusic Pro SE ships an update every 4 weeks, and Chordio every 8 days. Most recently, iWriteMusic Pro SE was updated on October 29, 2026 and Chordio on October 24, 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.*