# APTuner vs Twiddl Chromatic Tuner

The clearest difference is update cadence: Twiddl Chromatic Tuner at every 6 days against APTuner's every 3 months. APTuner's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

APTuner ships an update every 3 months, Twiddl Chromatic Tuner every 6 days. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | APTuner | Twiddl Chromatic Tuner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/aptuner/id6449228938/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 26 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Broms](https://appshunter.io/developer/688111413) | [Luis Diego Hernandez Arias](https://appshunter.io/developer/6800441302) |

## What reviewers say

### APTuner

[App page](https://appshunter.io/ios/app/aptuner/id6449228938)

This application provides highly accurate chromatic tuning for a wide range of instruments. It features a clear interface, customizable settings, and the ability to detect note deviations with precision.

**Highlights:** Automatic note and cent deviation detection, Accurate to 1/1000 semitone, High contrast, high visibility UI, Instrument presets, User selectable noise threshold, Settable A4 frequency, Historical temperaments

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

**In-app purchases:** none


### Twiddl Chromatic Tuner

[App page](https://appshunter.io/ios/app/twiddl-chromatic-tuner/id6800441300)

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

**In-app purchases:** none


## Frequently asked questions

### Is APTuner free?

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

### Is Twiddl Chromatic Tuner free?

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

### Do APTuner or Twiddl Chromatic Tuner have ads?

Neither APTuner nor Twiddl Chromatic Tuner shows ads.

### Which is updated more often, APTuner or Twiddl Chromatic Tuner?

APTuner ships an update every 3 months, and Twiddl Chromatic Tuner every 6 days. Most recently, APTuner was updated on October 1, 2026 and Twiddl Chromatic Tuner on October 16, 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.*