# Motion Synth vs Mynth

The clearest difference is rating: Mynth at 4.8 against Motion Synth's 3.5. Mynth also leads on update cadence (monthly vs every 4 months) and review sentiment (83% vs 73%). Motion Synth's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 15.0). On price, ratings volume and ads there is nothing between them.

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

Mynth holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 40 and 44 respectively. Written reviews point the same way: 73% of Motion Synth's written reviews are positive against 83% of Mynth's.

Motion Synth ships an update every 4 months, Mynth monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Motion Synth | Mynth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (40 ratings)](https://appshunter.io/ios/app/motion-synth/id945266624/reviews) | **[4.8 (44 ratings)](https://appshunter.io/ios/app/mynth-polyphonic-synthesizer/id1527862717/reviews)** |
| Number of ratings | 40 | **44** |
| Positive reviews | 73.3% of reviews | **82.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 33 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [AUUG](https://appshunter.io/developer/945266623) | [Fingerlab](https://appshunter.io/developer/412786610) |

## What reviewers say

### Motion Synth

[App page](https://appshunter.io/ios/app/motion-synth/id945266624)

This app turns your iPhone or iPod touch into a musical instrument. Play notes with touch and control sound with motion. It can be used standalone, with other iOS music apps, or even external hardware and laptop software.

**Highlights:** Play notes via touch, Shape sound through motion, Control in-app sounds, Control other iOS music apps, Control external hardware synths, Control laptop audio/visual software

**Features:** macOS Compatibility

**In-app purchases:** none


### Mynth

[App page](https://appshunter.io/ios/app/mynth-polyphonic-synthesizer/id1527862717)

Create unique sounds by drawing waveforms, adjusting filters, and controlling parameters with LFOs. Explore a vast sound palette with factory presets or build your own. Supports MIDI, AudioUnit, and live recording for track creation.

**Highlights:** Waveform drawing editor, 3 Oscillators, 2 dynamic Filters, 4 LFOs, 132 Factory presets, Arpeggiator, Live recording module

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |

**What reviewers like**

- 🤩 Amazing sound and potential
- 👍 Intuitive interface
- 💰 Great value for money
- 🚀 Easy to use and play around with
- 💡 Loads of features

**What reviewers complain about**

- 😟 High CPU usage
- 🐛 MIDI notes getting stuck
- 💸 Freemium model not ideal for some
- 🤏 Envelopes are fiddly to operate
- 🎛️ Filter envelope amount not adjustable

**Reported bugs**

- CPU usage so high
- Midi stucks notes
- Audio bugs
- Parameters not exposed in AUM
- Presets not accessible in Drambo

**Requested features**

- Mono + glide
- Better arpeggiator
- More MIDI learns (e.g., arp params, arp on/off)
- Sequencer functionality
- Copy and paste function for waveforms


## Frequently asked questions

### Is Motion Synth free?

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

### Is Mynth free?

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

### Which has better reviews, Motion Synth or Mynth?

Mynth is rated higher. Motion Synth averages 3.5 out of 5 from 40 ratings, while Mynth averages 4.8 from 44 ratings.

### Do Motion Synth or Mynth have ads?

Neither Motion Synth nor Mynth shows ads.

### Which is updated more often, Motion Synth or Mynth?

Motion Synth ships an update every 4 months, and Mynth monthly. Most recently, Motion Synth was updated on November 1, 2026 and Mynth on November 3, 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.*