# Knob16 vs SynthModule

The clearest difference is price: Knob16 at Free against SynthModule's $29.99. SynthModule's advantage is update cadence (daily vs every 6 days) and iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Knob16 is free to download; SynthModule costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Knob16 ships an update every 6 days, SynthModule daily. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Knob16 | SynthModule |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Daily** |
| Monetization | — | Paid |
| Size | 7 MB | 94 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [JURIJS KOSKINS](https://appshunter.io/developer/1888330126) | [isael lopes guimaraes](https://appshunter.io/developer/6784663435) |

## What reviewers say

### Knob16

[App page](https://appshunter.io/ios/app/knob16/id6761230712)

**In-app purchases:** none


### SynthModule

[App page](https://appshunter.io/ios/app/synthmodule/id6784663433)

This app provides a professional-grade keyboard and synthesizer experience on your iPhone or iPad. It offers a versatile mixer, extensive sound import capabilities, and advanced features for live performance and music production.

**Highlights:** SoundFonts with custom import, 8-channel mixer with FX, Live Set for instant scene recall, Drum Pad with sample playback, AUv3 plugin hosting, MIDI Learn with LED sync, Low-latency audio

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

**In-app purchases:** none


## Frequently asked questions

### Is Knob16 free?

Knob16 is free to download, with no in-app purchases.

### Is SynthModule free?

SynthModule costs $29.99, with no in-app purchases.

### Do Knob16 or SynthModule have ads?

Neither Knob16 nor SynthModule shows ads.

### Which is updated more often, Knob16 or SynthModule?

Knob16 ships an update every 6 days, and SynthModule daily. Most recently, Knob16 was updated on October 14, 2026 and SynthModule on October 8, 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.*