# Euterpe vs Chord Graph

The clearest difference is price: Euterpe at Free against Chord Graph's $4.99. Euterpe also leads on update cadence (every 2 days vs every 5 months). Chord Graph's advantage is in-app purchases (none vs 1) and iOS requirement (18.0 vs 26.2). On ads and device support there is nothing between them.

Euterpe is free to download; Chord Graph costs $4.99 up front. Euterpe sells 1 one-off in-app purchase. Chord Graph asks for nothing beyond the download.

Euterpe ships an update every 2 days, Chord Graph every 5 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Euterpe | Chord Graph |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 months |
| Size | 56 MB | 2 MB |
| Requires iOS | 26.2 | **18.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [diego indraccolo](https://appshunter.io/developer/1878172813) | [DX Wave Limited](https://appshunter.io/developer/441914780) |

## What reviewers say

### Euterpe

[App page](https://appshunter.io/ios/app/euterpe-chord-plus-scale-entry/id6759628072)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Euterpe Pro | $6.99 | one-time |


### Chord Graph

[App page](https://appshunter.io/ios/app/chord-graph/id6770043799)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Euterpe free?

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

### Is Chord Graph free?

Chord Graph costs $4.99, with no in-app purchases.

### Do Euterpe or Chord Graph have ads?

Neither Euterpe nor Chord Graph shows ads.

### Which is updated more often, Euterpe or Chord Graph?

Euterpe ships an update every 2 days, and Chord Graph every 5 months. Most recently, Euterpe was updated on October 24, 2026 and Chord Graph on October 28, 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.*