# MIDIx vs Tonic Synth

The clearest difference is price: MIDIx at $8.99 against Tonic Synth's $24.99. MIDIx also leads on ratings volume (3 vs 1) and iOS requirement (15.6 vs 17.0). On rating, review sentiment, update cadence and ads there is nothing between them.

MIDIx costs $8.99 and Tonic Synth $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for MIDIx against 5.0 for Tonic Synth. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

MIDIx ships an update every 8 days, Tonic Synth every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | MIDIx | Tonic Synth |
| --- | --- | --- |
| Price | **$8.99** | $24.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/midix-physics-midi-generator/id6758278999/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/tonic-synth/id6783345229/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 17 MB | 34 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Fingerlab](https://appshunter.io/developer/412786610) | [Rubens Felicio](https://appshunter.io/developer/6775565794) |

## What reviewers say

### MIDIx

[App page](https://appshunter.io/ios/app/midix-physics-midi-generator/id6758278999)

This app uses physics simulations to generate expressive MIDI data. Control parameters through object movement or create generative note sequences. It's a unique tool for musicians seeking organic and evolving soundscapes.

**Highlights:** Physics-driven MIDI CC generation, Generative MIDI note sequencing, AUv3 plugin support, Customizable physics scenes, Built-in scale library, Real-time modulation, Universal app for iOS and Mac

**Features:** Vision Pro support

**In-app purchases:** none


### Tonic Synth

[App page](https://appshunter.io/ios/app/tonic-synth/id6783345229)

A powerful synthesizer app offering three oscillators with diverse sound sources, including physical modeling and wavetables. It features eight analog filter simulations, extensive modulation options, and a full effects rack. Available as a standalone app or AU/AUv3 plugin for Mac and iOS.

**Highlights:** Three oscillators with physical modeling, virtual-analog, wavetable, SF2, and sysex FM, Eight analog filter simulations (LP/HP/BP/Notch, 12/24 dB), Comprehensive modulation: LFO, envelope follower, note-per-note filter envelope, Full effects rack: chorus, delay, reverb, EQ, compressor, flanger, phaser, Standalone app and AU/AUv3 plugin support, Live performance features: editable presets, six scenes, MIDI Learn

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MIDIx free?

MIDIx costs $8.99, with no in-app purchases.

### Is Tonic Synth free?

Tonic Synth costs $24.99, with no in-app purchases.

### Which has better reviews, MIDIx or Tonic Synth?

MIDIx and Tonic Synth are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do MIDIx or Tonic Synth have ads?

Neither MIDIx nor Tonic Synth shows ads.

### Which is updated more often, MIDIx or Tonic Synth?

MIDIx ships an update every 8 days, and Tonic Synth every 4 days. Most recently, MIDIx was updated on October 31, 2026 and Tonic Synth on October 31, 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.*