# Synesthesia Synth vs Audio Aura

The clearest difference is in-app purchases: Synesthesia Synth at none against Audio Aura's 1. Synesthesia Synth also leads on iOS requirement (16.0 vs 26.1). Audio Aura's advantage is update cadence (daily vs every 10 days). On price, ads and device support there is nothing between them.

Both are free to download. Audio Aura sells 1 one-off in-app purchase. Synesthesia Synth asks for nothing beyond the download.

Synesthesia Synth ships an update every 10 days, Audio Aura daily. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Synesthesia Synth | Audio Aura |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synesthesia-synth/id6763379132/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 141 MB | 4 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MICHELE ZACCAGNINI](https://appshunter.io/developer/1895288560) | [Sampurna Adhikari](https://appshunter.io/developer/1661920010) |

## What reviewers say

### Synesthesia Synth

[App page](https://appshunter.io/ios/app/synesthesia-synth/id6763379132)

An experimental audio-visual instrument that allows users to sculpt evolving spatial audio by manipulating floating capsules. Position, rotation, and pulse changes affect tone, texture, and synchronized particle generation. It's a visual synthesizer, not a game.

**Highlights:** Experimental audio-visual instrument, Sculpt evolving spatial audio, Manipulate floating capsules, Control tone, texture, and particles, Visual synthesizer

**In-app purchases:** none


### Audio Aura

[App page](https://appshunter.io/ios/app/audio-aura/id6768512432)

Transform your device's flashlight into a dynamic light show that reacts to ambient sound. Experience immersive visuals that pulse and breathe with music, conversations, or any audio in your environment. No account or music library needed, just pure, responsive light.

**Highlights:** Sound-reactive flashlight, Dynamic screen visuals, Responds to ambient audio, No account required, No music library access, Lightweight and private

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pulse Lord | $2.99 | one-time |


## Frequently asked questions

### Is Synesthesia Synth free?

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

### Is Audio Aura free?

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

### Do Synesthesia Synth or Audio Aura have ads?

Neither Synesthesia Synth nor Audio Aura shows ads.

### Which is updated more often, Synesthesia Synth or Audio Aura?

Synesthesia Synth ships an update every 10 days, and Audio Aura daily. Most recently, Synesthesia Synth was updated on October 3, 2026 and Audio Aura on October 12, 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.*