# MIDI Aid vs Synesthesia Synth

The clearest difference is price: Synesthesia Synth at Free against MIDI Aid's $0.99. Synesthesia Synth also leads on update cadence (every 10 days vs every 35 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Synesthesia Synth is free to download; MIDI Aid costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MIDI Aid ships an update every 35 months, Synesthesia Synth every 10 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | MIDI Aid | Synesthesia Synth |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synesthesia-synth/id6763379132/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 35 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 26 MB | 141 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Wissmueller](https://appshunter.io/developer/785655742) | [MICHELE ZACCAGNINI](https://appshunter.io/developer/1895288560) |

## What reviewers say

### MIDI Aid

[App page](https://appshunter.io/ios/app/midi-aid/id811495668)

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is MIDI Aid free?

MIDI Aid costs $0.99, with no in-app purchases.

### Is Synesthesia Synth free?

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

### Do MIDI Aid or Synesthesia Synth have ads?

Neither MIDI Aid nor Synesthesia Synth shows ads.

### Which is updated more often, MIDI Aid or Synesthesia Synth?

MIDI Aid ships an update every 35 months, and Synesthesia Synth every 10 days. Most recently, MIDI Aid was updated on October 7, 2026 and Synesthesia Synth on October 3, 2026.

---

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