# WindSynth 16 vs Mochizuki

The clearest difference is in-app purchases: WindSynth 16 at none against Mochizuki's 5. Mochizuki's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. Mochizuki sells 5 one-off in-app purchases. WindSynth 16 asks for nothing beyond the download.

WindSynth 16 ships an update every 6 weeks, Mochizuki every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | WindSynth 16 | Mochizuki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (11 ratings)](https://appshunter.io/ios/app/mochizuki-auv3-synth/id6776942580/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 38 MB |
| Requires iOS | 26.4 | **18** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) | [iceWorks, Inc.](https://appshunter.io/developer/347507439) |

## What reviewers say

### WindSynth 16

[App page](https://appshunter.io/ios/app/windsynth-16/id6766004505)

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

**In-app purchases:** none


### Mochizuki

[App page](https://appshunter.io/ios/app/mochizuki-auv3-synth/id6776942580)

This is a subtractive synthesizer application featuring four oscillators. It offers a platform for creating and manipulating sounds. More detailed information is available on the product website.

**Highlights:** Subtractive synthesis, Four oscillators, AUv3 plugin support, Sound manipulation

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free 7-day trial | Free | one-time |
| Small Tip | $1.00 | one-time |
| Medium Tip | $3.00 | one-time |
| Large Tip | $5.00 | one-time |
| Core Features | $20.00 | one-time |


## Frequently asked questions

### Is WindSynth 16 free?

WindSynth 16 is free to download, with no in-app purchases.

### Is Mochizuki free?

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

### Do WindSynth 16 or Mochizuki have ads?

WindSynth 16 shows ads; Mochizuki does not.

### Which is updated more often, WindSynth 16 or Mochizuki?

WindSynth 16 ships an update every 6 weeks, and Mochizuki every 2 weeks. Most recently, WindSynth 16 was updated on October 31, 2026 and Mochizuki 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.*