# BlueNote2 vs HarmoniaMASTER

The clearest difference is price: BlueNote2 at Free against HarmoniaMASTER's $2.99. BlueNote2 also leads on device support (3 vs 1) and iOS requirement (9.0 vs 17.0). HarmoniaMASTER's advantage is update cadence (every 5 days vs every 12 months). On ads and in-app purchases there is nothing between them.

BlueNote2 is free to download; HarmoniaMASTER costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BlueNote2 ships an update every 12 months, HarmoniaMASTER every 5 days. The most recent releases landed on September 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | BlueNote2 | HarmoniaMASTER |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/bluenote2/id1259298580/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 16 MB | 2 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yaneurabeya](https://appshunter.io/developer/380856441) | [Mina Iwabuchi](https://appshunter.io/developer/1889826002) |

## What reviewers say

### BlueNote2

[App page](https://appshunter.io/ios/app/bluenote2/id1259298580)

This music app allows users to create sounds and chords by tapping on a visual representation of frequencies. It offers a unique way to explore musical intervals and scales with a simple, intuitive interface.

**Highlights:** Visual frequency expression, Tap to sound creation, Explore musical intervals, Major and minor chord generation, Simple sign wave timbre

**Features:** macOS Compatibility

**In-app purchases:** none


### HarmoniaMASTER

[App page](https://appshunter.io/ios/app/harmoniamaster/id6761472671)

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

**In-app purchases:** none


## Frequently asked questions

### Is BlueNote2 free?

BlueNote2 is free to download, with no in-app purchases.

### Is HarmoniaMASTER free?

HarmoniaMASTER costs $2.99, with no in-app purchases.

### Do BlueNote2 or HarmoniaMASTER have ads?

Neither BlueNote2 nor HarmoniaMASTER shows ads.

### Which is updated more often, BlueNote2 or HarmoniaMASTER?

BlueNote2 ships an update every 12 months, and HarmoniaMASTER every 5 days. Most recently, BlueNote2 was updated on September 22, 2026 and HarmoniaMASTER on October 8, 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.*