# Diapason Audio Generator vs HAMmade GRID

The clearest difference is price: HAMmade GRID at Free against Diapason Audio Generator's $1.99. HAMmade GRID also leads on update cadence (every 4 days vs every 5 months). Diapason Audio Generator's advantage is iOS requirement (12.2 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

HAMmade GRID is free to download; Diapason Audio Generator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Diapason Audio Generator ships an update every 5 months, HAMmade GRID every 4 days. The most recent releases landed on October 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Diapason Audio Generator | HAMmade GRID |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/diapason-audio-generator/id352091730/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 2 MB | 18 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabien Lefebvre](https://appshunter.io/developer/338004167) | [Oguz Agceli](https://appshunter.io/developer/932644547) |

## What reviewers say

### Diapason Audio Generator

[App page](https://appshunter.io/ios/app/diapason-audio-generator/id352091730)

Generate various audio test tones, including sine waves, noise, and more. Combine up to four independent sources with phase control for each speaker. Monitor waveforms and output power with clipping indication.

**Highlights:** Multiple test tone types (sine, square, triangle, sawtooth, noise), Combine up to 4 independent audio sources, Phase switch for each speaker channel, Frequency sweeping and musical scale alignment, Narrow band noise generation, Waveform viewer, RMS power and clipping indication

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

**In-app purchases:** none


### HAMmade GRID

[App page](https://appshunter.io/ios/app/hammade-grid/id6757299877)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diapason Audio Generator free?

Diapason Audio Generator costs $1.99, with no in-app purchases.

### Is HAMmade GRID free?

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

### Do Diapason Audio Generator or HAMmade GRID have ads?

Neither Diapason Audio Generator nor HAMmade GRID shows ads.

### Which is updated more often, Diapason Audio Generator or HAMmade GRID?

Diapason Audio Generator ships an update every 5 months, and HAMmade GRID every 4 days. Most recently, Diapason Audio Generator was updated on October 29, 2026 and HAMmade GRID on October 5, 2026.

---

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