# Tuning Fork Studio vs Illustra

The clearest difference is update cadence: Tuning Fork Studio at every 2 weeks against Illustra's every 2 months. Tuning Fork Studio also leads on iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tuning Fork Studio sells 3 in-app purchases, starting at $0.99 per month and Illustra sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Tuning Fork Studio ships an update every 2 weeks, Illustra every 2 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Tuning Fork Studio | Illustra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tuning-fork-studio/id6751743458/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Freemium | — |
| Size | 35 MB | 18 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [丽俨 龚](https://appshunter.io/developer/1816613061) | [JOAO FELIPE OLIVEIRA FLORIANO DE SOUZA](https://appshunter.io/developer/6798350175) |

## What reviewers say

### Tuning Fork Studio

[App page](https://appshunter.io/ios/app/tuning-fork-studio/id6751743458)

Generate fundamental audio waveforms like sine, square, triangle, and sawtooth with precise control over frequency, amplitude, phase, and harmonics. Export high-quality audio for music production, sound design, and acoustic testing.

**Highlights:** Sine, square, triangle, sawtooth wave generation, Precise frequency control (A4 standard, custom Hz), Amplitude, phase, and multi-harmonic overlay, Real-time complex sound synthesis, High-quality audio export, Music production and sound design tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $5.99 | per year |
| Lifetime | $9.99 | one-time |


### Illustra

[App page](https://appshunter.io/ios/app/illustra-highlight-scanner/id6798350173)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $14.99 | per month |
| Annual Subscription | $119.99 | per year |


## Frequently asked questions

### Is Tuning Fork Studio free?

Tuning Fork Studio is free to download, with in-app purchases available.

### Is Illustra free?

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

### Do Tuning Fork Studio or Illustra have ads?

Neither Tuning Fork Studio nor Illustra shows ads.

### Which is updated more often, Tuning Fork Studio or Illustra?

Tuning Fork Studio ships an update every 2 weeks, and Illustra every 2 months. Most recently, Tuning Fork Studio was updated on October 24, 2026 and Illustra on October 29, 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.*