# GPF Easy Diapason vs Pitch Pipe

The clearest difference is in-app purchases: GPF Easy Diapason at none against Pitch Pipe's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pitch Pipe sells 2 in-app purchases, starting at $3.99 per 7 days. GPF Easy Diapason asks for nothing beyond the download.

## The numbers

| Metric | GPF Easy Diapason | Pitch Pipe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 0 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gian Paolo Fontani](https://appshunter.io/developer/1866631629) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### GPF Easy Diapason

[App page](https://appshunter.io/ios/app/gpf-easy-diapason/id6760007666)

**In-app purchases:** none


### Pitch Pipe

[App page](https://appshunter.io/ios/app/pitch-pipe-reference-tone/id6772272683)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is GPF Easy Diapason free?

GPF Easy Diapason is free to download, with no in-app purchases.

### Is Pitch Pipe free?

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

### Do GPF Easy Diapason or Pitch Pipe have ads?

Neither GPF Easy Diapason nor Pitch Pipe shows ads.

---

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