# HarmoTuner vs PureTune Keys

The clearest difference is in-app purchases: HarmoTuner at none against PureTune Keys's 1. PureTune Keys's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PureTune Keys sells 1 one-off in-app purchase. HarmoTuner asks for nothing beyond the download.

## The numbers

| Metric | HarmoTuner | PureTune Keys |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 1 MB | 10 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shunsuke Hosomi](https://appshunter.io/developer/6780727274) | [Hiroto Okawa](https://appshunter.io/developer/1895506822) |

## What reviewers say

### HarmoTuner

[App page](https://appshunter.io/ios/app/harmotuner/id6780727272)

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

**In-app purchases:** none


### PureTune Keys

[App page](https://appshunter.io/ios/app/puretune-keys/id6800927665)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All 12 Keys | $4.99 | one-time |


## Frequently asked questions

### Is HarmoTuner free?

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

### Is PureTune Keys free?

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

### Do HarmoTuner or PureTune Keys have ads?

Neither HarmoTuner nor PureTune Keys shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*