# Perfect Echo vs Harmonia

The clearest difference is in-app purchases: Perfect Echo at none against Harmonia's 6. Perfect Echo also leads on iOS requirement (12.0 vs 17.0). Harmonia's advantage is update cadence (monthly vs every 35 months). On price, ads and device support there is nothing between them.

Both are free to download. Harmonia sells 6 one-off in-app purchases. Perfect Echo asks for nothing beyond the download.

Perfect Echo ships an update every 35 months, Harmonia monthly. The most recent releases landed on November 7, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Perfect Echo | Harmonia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/harmonia-match-the-notes/id6787542089/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 35 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 112 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Marco Andreotti](https://appshunter.io/developer/1514019597) | [Rowan Vredenburg](https://appshunter.io/developer/6787542241) |

## What reviewers say

### Perfect Echo

[App page](https://appshunter.io/ios/app/perfect-echo/id1544980146)

**Features:** macOS Compatibility

**In-app purchases:** none


### Harmonia

[App page](https://appshunter.io/ios/app/harmonia-match-the-notes/id6787542089)

Train your ear with this music puzzle game. Listen to a target sound, then recreate it from memory by selecting instruments and adjusting notes. Explore musical worlds and compete in daily challenges to test your auditory skills.

**Highlights:** Recreate sounds from memory, Adjust instrument pitches, Hundreds of levels across musical worlds, Daily challenges, Ear training mechanics, No time pressure

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Refill Lives | $0.99 | one-time |
| Replay Pack (Small) | $0.99 | one-time |
| Hint Pack (Small) | $0.99 | one-time |
| Replay Pack (Large) | $1.79 | one-time |
| Hint Pack (Large) | $1.79 | one-time |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Perfect Echo free?

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

### Is Harmonia free?

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

### Do Perfect Echo or Harmonia have ads?

Both Perfect Echo and Harmonia show ads.

### Which is updated more often, Perfect Echo or Harmonia?

Perfect Echo ships an update every 35 months, and Harmonia monthly. Most recently, Perfect Echo was updated on November 7, 2026 and Harmonia on November 13, 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.*