# Tuner (チューナー) - 高精度チューニングアプリ

> High-precision chromatic tuner app with adjustable reference tone and test tone generation. (iPhone/iPad app by Nobuhiro Takahashi.)

- Source: https://appshunter.io/ios/app/tuner/id1084397431 (this page in markdown: same URL + `.md`)
- Developer: [Nobuhiro Takahashi](https://appshunter.io/developer/358045838)
- Category: Music, Education
- Price: Free
- Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 3 MB
- Languages: English
- Released: 2016-02-19
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tuner/id1084397431/reviews.md

## What is Tuner (チューナー)?

高精度なクロマチックチューナーアプリです。
基準音 A4 を 400Hz 〜 480Hz で 1Hz 単位で設定できます。
C0 〜 B8 の広い音程でサイン波のテスト音を鳴らすことができます。

【注意】
耳を痛めないように、音量を上げないでテスト音を鳴らしてください。
特に B2 以下の低い音は聞こえなくても、物理的に音としては出ているので音量を上げて耳を痛めないように気をつけてください。
C6 以上の高い音も、同様です（高い音は気づくと思いますが）。

## Key features

- High-precision chromatic tuning
- Adjustable reference tone (400Hz-480Hz)
- Test tone generation (C0-B8)
- Wide note range support
- 1Hz increment tuning

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/tuner/id1084397431/reviews.md

### 4/5 — Works well, need tweaks

*2017-08-02*

I like this app. It's simple. Maybe in future release you can make the note buttons bigger and brighter.

## Frequently asked questions about Tuner (チューナー)

### What is the short name for Tuner (チューナー) - 高精度チューニングアプリ?

The short name for Tuner (チューナー) - 高精度チューニングアプリ is Tuner. This is derived by removing the subtitle and parenthetical information.

### How accurate is the Tuner app?

The app is described as a 'high-precision chromatic tuner'. While specific accuracy metrics are not detailed, its design focuses on precision for musical tuning.

### Can I adjust the reference pitch on Tuner?

Yes, you can set the reference tone A4 to any frequency between 400Hz and 480Hz, with adjustments in 1Hz increments.

### Does Tuner have ads?

No, Tuner does not contain advertisements. It is a completely ad-free application.

### What devices does Tuner support?

Tuner is supported on iPhone, iPad, and iPod devices.

### What is the age rating for Tuner?

Tuner has an age rating of 4+, making it suitable for a wide range of users.

### How often is Tuner updated?

The latest version is 1.0.1, and the last update was on March 31, 2026. This indicates infrequent updates.

### What is the user rating for Tuner?

Tuner has a user rating of 4.0 stars based on 1 rating.

## Version history (last 2 releases)

### 1.0.1 — 2026-03-31

iOS26 に対応しました。iOS26 未満のバージョンではお使いいただけません。

### 1.0 — 2016-02-19

このAppはApple Watch Appのアイコンを表示するようAppleにより更新されました。

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## More apps by Nobuhiro Takahashi

- [Notes Quiz (ノーツクイズ)](https://appshunter.io/ios/app/notes-quiz/id998247786)
- [Circle of Fifth Clock](https://appshunter.io/ios/app/circle-of-fifth-clock/id1442015128)
- [Simple Caffeine](https://appshunter.io/ios/app/simple-caffeine/id1451062048)
- [Taijuu](https://appshunter.io/ios/app/taijuu/id1477867501)
- [Nihon Colors](https://appshunter.io/ios/app/nihon-colors/id1567519589)

All apps by Nobuhiro Takahashi: https://appshunter.io/developer/358045838

## Related topics

[feb19](https://appshunter.io/ios/topics/feb19) · [吹奏楽部](https://appshunter.io/ios/topics/)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*