# HeadStack vs Pythagorean Tuner

The clearest difference is price: Pythagorean Tuner at Free against HeadStack's $12.99. Pythagorean Tuner also leads on rating (5.0 vs 4.8). HeadStack's advantage is ratings volume (5 vs 1) and device support (3 vs 1). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Pythagorean Tuner is free to download; HeadStack costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pythagorean Tuner holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: HeadStack has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

HeadStack ships an update every 9 days, Pythagorean Tuner every 2 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HeadStack | Pythagorean Tuner |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.8 (5 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pythagorean-tuner/id6791005167/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Paid | **Free** |
| Size | 25 MB | 1 MB |
| Requires iOS | **14** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [Leonid Iogansen](https://appshunter.io/developer/762098337) |

## What reviewers say

### HeadStack

[App page](https://appshunter.io/ios/app/headstack/id6781611375)

This app offers a virtual tape loop with 8 independently configurable playback heads for creating diverse echo effects. It captures the warmth of classic tape machines while offering modern flexibility for sound design, from vintage echoes to evolving ambient textures.

**Highlights:** Multi-head tape engine with 8 playback heads, Vintage tape character and imperfections, Independent control for each playback head, Rotating head wheel for dynamic effects, Granular harmony engine for pitch-shifted textures, Per-head modulation and creative feedback routing, Diffusion and smearing for atmospheric washes

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

**In-app purchases:** none


### Pythagorean Tuner

[App page](https://appshunter.io/ios/app/pythagorean-tuner/id6791005167)

This app offers a precision tuning experience for string musicians and singers. It tunes to pure Pythagorean intonation, distinguishing between enharmonic pitches for a more authentic sound.

**Highlights:** True Pythagorean intonation, Pure 3:2 perfect fifths, Distinguishes enharmonic pitches, Precision tuning for musicians, Supports violin, cello, viola, bass, and singers

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

**In-app purchases:** none


## Frequently asked questions

### Is HeadStack free?

HeadStack costs $12.99, with no in-app purchases.

### Is Pythagorean Tuner free?

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

### Which has better reviews, HeadStack or Pythagorean Tuner?

Pythagorean Tuner is rated higher. HeadStack averages 4.8 out of 5 from 5 ratings, while Pythagorean Tuner averages 5.0 from 1 ratings.

### Do HeadStack or Pythagorean Tuner have ads?

Neither HeadStack nor Pythagorean Tuner shows ads.

### Which is updated more often, HeadStack or Pythagorean Tuner?

HeadStack ships an update every 9 days, and Pythagorean Tuner every 2 weeks. Most recently, HeadStack was updated on October 12, 2026 and Pythagorean Tuner on October 9, 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.*