# iDiapason vs Pitch Pipe

The clearest difference is in-app purchases: iDiapason at none against Pitch Pipe's 2. Pitch Pipe's advantage is update cadence (every 2 months vs every 202 months). 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. iDiapason asks for nothing beyond the download.

iDiapason ships an update every 202 months, Pitch Pipe every 2 months. The most recent releases landed on June 10, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | iDiapason | Pitch Pipe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/idiapason/id325550985/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 202 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 3 MB | 6 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Punctus Multimedia](https://appshunter.io/developer/325550989) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### iDiapason

[App page](https://appshunter.io/ios/app/idiapason/id325550985)

This app provides a precise digital tuning fork for musicians and choir directors. It offers a clean interface with reference pitches and a unique shake-to-play gesture, delivering an authentic and distraction-free tuning experience.

**Highlights:** Reference pitches (435-444 Hz), Real recorded tuning fork sound, Shake-to-play interaction, Smooth audio fade-out, Visual feedback animation, Minimalist design

**Features:** macOS Compatibility

**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 iDiapason free?

iDiapason 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 iDiapason or Pitch Pipe have ads?

Neither iDiapason nor Pitch Pipe shows ads.

### Which is updated more often, iDiapason or Pitch Pipe?

iDiapason ships an update every 202 months, and Pitch Pipe every 2 months. Most recently, iDiapason was updated on June 10, 2026 and Pitch Pipe on September 6, 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.*