# Endless A vs Helix Tuner

The clearest difference is price: Endless A at Free against Helix Tuner's $15.99. Endless A also leads on update cadence (weekly vs every 4 months) and review sentiment (100% vs 90%). Helix Tuner's advantage is ratings volume (164 vs 2) and rating (4.8 vs 4.5). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

Helix Tuner holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Helix Tuner has 164 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of Endless A's written reviews are positive against 90% of Helix Tuner's, so the app with the better star average is not the one people write more warmly about.

Endless A ships an update weekly, Helix Tuner every 4 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Endless A | Helix Tuner |
| --- | --- | --- |
| Price | **Free** | $15.99 |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/endless-a-440/id971330737/reviews) | **[4.8 (164 ratings)](https://appshunter.io/ios/app/helix-tuner/id1444576708/reviews)** |
| Number of ratings | 2 | **164** |
| Positive reviews | **100.0% of reviews** | 89.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Free | Free |
| Best chart rank | — | **#193** |
| Size | 7 MB | 198 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nathan Fennel](https://appshunter.io/developer/968469779) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## What reviewers say

### Endless A

[App page](https://appshunter.io/ios/app/endless-a-440/id971330737)

Easily generate a consistent A-440 pitch for tuning instruments. Select from various instrument sounds to play the reference tone endlessly until you tap to stop. Ideal for musicians needing a reliable tuning reference.

**Highlights:** Endless A-440 pitch generation, Multiple instrument sound options, Simple tap-to-play interface, Reference tone for tuning, Piano, violin, french horn, sine wave sounds

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

**In-app purchases:** none


### Helix Tuner

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

**Currently charting:** #193 Top Paid · Music (US App Store)

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 Endless A free?

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

### Is Helix Tuner free?

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

### Which has better reviews, Endless A or Helix Tuner?

Helix Tuner is rated higher. Endless A averages 4.5 out of 5 from 2 ratings, while Helix Tuner averages 4.8 from 164 ratings.

### Do Endless A or Helix Tuner have ads?

Neither Endless A nor Helix Tuner shows ads.

### Which is updated more often, Endless A or Helix Tuner?

Endless A ships an update weekly, and Helix Tuner every 4 months. Most recently, Endless A was updated on September 21, 2026 and Helix Tuner on September 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.*