# 12Chord vs Helix Tuner

The clearest difference is price: 12Chord at Free against Helix Tuner's $15.99. Helix Tuner's advantage is update cadence (every 4 months vs every 48 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

12Chord is free to download; Helix Tuner costs $15.99 up front. Neither carries in-app purchases, so what you see is what you pay.

12Chord ships an update every 48 months, Helix Tuner every 4 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 12Chord | Helix Tuner |
| --- | --- | --- |
| Price | **Free** | $15.99 |
| Rating | — | **[4.8 (166 ratings)](https://appshunter.io/ios/app/helix-tuner/id1444576708/reviews)** |
| Number of ratings | — | **166** |
| Positive reviews | — | 89.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 28 MB | 198 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Panus Tantikornphan](https://appshunter.io/developer/548632854) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## What reviewers say

### 12Chord

[App page](https://appshunter.io/ios/app/12chord/id1063739603)

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

**In-app purchases:** none


### Helix Tuner

[App page](https://appshunter.io/ios/app/helix-tuner/id1444576708)

This app offers a novel approach to instrument tuning by visualizing sound as an interference pattern. It avoids pitch detection, instead creating an optical illusion of motion that indicates sharpness or flatness, appearing stable when in tune. This method is highly resistant to background noise and harmonics, providing clear tuning information even in noisy environments.

**Highlights:** Visual interference pattern tuning, No pitch detection, Optical illusion of motion for tuning, Stable visualization when in tune, Resistant to background noise, Useful in noisy environments

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 12Chord free?

12Chord is free to download, with no in-app purchases.

### Is Helix Tuner free?

Helix Tuner costs $15.99, with no in-app purchases.

### Do 12Chord or Helix Tuner have ads?

Neither 12Chord nor Helix Tuner shows ads.

### Which is updated more often, 12Chord or Helix Tuner?

12Chord ships an update every 48 months, and Helix Tuner every 4 months. Most recently, 12Chord was updated on October 29, 2026 and Helix Tuner on October 24, 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.*