# Core Guitar vs Knob16

The clearest difference is update cadence: Knob16 at every 6 days against Core Guitar's every 2 weeks. Knob16 also leads on iOS requirement (18.6 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Core Guitar ships an update every 2 weeks, Knob16 every 6 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Core Guitar | Knob16 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Size | 37 MB | 7 MB |
| Requires iOS | 26.2 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Craig](https://appshunter.io/developer/1878001417) | [JURIJS KOSKINS](https://appshunter.io/developer/1888330126) |

## What reviewers say

### Core Guitar

[App page](https://appshunter.io/ios/app/core-guitar/id6759306663)

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

**In-app purchases:** none


### Knob16

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

**In-app purchases:** none


## Frequently asked questions

### Is Core Guitar free?

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

### Is Knob16 free?

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

### Do Core Guitar or Knob16 have ads?

Neither Core Guitar nor Knob16 shows ads.

### Which is updated more often, Core Guitar or Knob16?

Core Guitar ships an update every 2 weeks, and Knob16 every 6 days. Most recently, Core Guitar was updated on October 25, 2026 and Knob16 on October 14, 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.*