# @Tuner — Equal,Just,Meantone,,and more!

> High-performance instrument tuner with multiple temperament options and adjustable sensitivity. (iPhone/iPad app by 株式会社クリーブウェア.)

- Source: https://appshunter.io/ios/app/tuner/id1035197114 (this page in markdown: same URL + `.md`)
- Developer: [株式会社クリーブウェア](https://appshunter.io/developer/943315340)
- Category: Music, Utilities
- Price: $2.99
- Rating: 1.00/5 from 1 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 33 MB
- Languages: American English, Japanese
- Released: 2016-02-24
- Data updated: 2026-08-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/tuner/id1035197114/reviews.md

## What is @Tuner?

A high performance instrument tuner app for use by amateurs to professionals is here!
Get the great feeling of tuning through casual operation of the simple UI.
Recommended for people using all manner of instruments!

＜Feature Introduction＞
■Basic Features
 - Chromatic Tuner
 - Needle Style Meter
 - An Original Ring Tuner
 - Cent Display
 - Frequency Display
 - Calibration Adjustment Feature
 - Volume Meter
 - Transposition Feature (Transpose/Capo)
 - Mic Sensitivity Adjustment Feature
 - Pitch Pipe Feature
 - String Instrument Tuner Mode
 - Change between Sharp/Flat display
 - Change the ring oscillation direction
 - Temperament Change Feature（Keynote configuration possible）

■Specifications
 - Precision at 0.1 cent and above
 - Possible measurement range
 　When using the built-in iPhone mic: B0～E6（limited by iPhone mic performance）
 　When demonstrating maximum performance (※1): C0～B7

■Configurable Temperaments
 - Equal Temperament
 - Pythagorean Temperament
 - Just Intonation (Major)
 - Just Intonation (Minor)
 - 1/4 Comma Meantone Temperament
 - Kirnberger Third Method
 - Werkmeister First Technique Third Method
 
■Required Environment
iOS 8 or above is required.
Target Devices: iPhone4S/5/5S/5C/6/6S/6plus/6S-plus,Fifth generation iPod touch or later

 　(※1) It is not possible to exert this app’s maximum performance using the iPhone built-in mic.
 　　　　To exert maximum performance, please use a specialized mic device that is connectable through the mic port.
 　　　　This product cannot be used with specialized mic devices that are connected through a Lightening port.

■Support
If the app won’t load, there is a defect, or some other inconvenience, please contact us through support on the official homepage, info@atbeat.net, or through Twitter/Facebook.

## Key features

- Chromatic tuner
- Needle style meter
- Original ring tuner
- Cent and frequency display
- Calibration adjustment
- Transposition feature
- Configurable temperaments

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/tuner/id1035197114/reviews.md

### 3/5 — 表示サイズ

*2023-09-01*

iPhone14proで利用しています。
最近画面サイズにおさまらなくなった。
端末設定のせいかな。

### 4/5 — 倍音

*2017-07-23*

倍音多めで減衰の早い楽器だとピッチメーター表示が動きすぎて、混乱しました。
純正律の主音を変えられて、ピッチ笛としての機能するのはありがたいです。

### 4/5 — できますよ

*2017-02-13*

左側のキャリブレーションのスイッチを入れて、右側のダイヤルを回すとAの周波数を変更できますよ。

### 5/5 — 精度がとてもいいです。

*2016-06-17*

音律や移調に対応してて、音の微妙な違いもしっかりと表現してくれます。

精度も市販のチューナーと変わらず、持ち運びも簡単で重宝してます。

### 5/5 — 使えます❗️

*2016-03-10*

チューバのペダルトーンもしっかり拾ってくれます。
それだけで素晴らしい。
感度が調整できるところも◎
音が出ないと書いてる方がいらっしゃいますが、ちゃんと出ます。
キャリブレーションの値が設定で保存できるようになればパーフェクトです。

### 5/5 — 良い！

*2016-02-28*

周囲のリングをなくして欲しいですが、今後使っていけそうなものに出会いました！

### 2/5 — 管楽器向きではないかな

*2016-02-24*

音が出るモードがありません。
また周囲のリングを光がくるくる回ってわずらわしいです。
管楽器の場合、高精度でピッタリ合わせる事は難しいので、リングの光を消してメーターだけで確認できるモードが欲しいです。
まぁ、別のチューナーアプリを使えばよいだけですが。

## Frequently asked questions about @Tuner

### What instruments can I tune with @Tuner?

@Tuner is designed for a wide array of instruments, from guitars to other string instruments. Its chromatic tuner and specialized string instrument mode ensure versatility for various musical needs.

### How accurate is @Tuner?

@Tuner offers precision at 0.1 cent and above. It supports a measurement range from B0 to E6 with the built-in iPhone mic, and up to C0 to B7 when using a specialized external microphone.

### Does @Tuner support different tuning temperaments?

Yes, @Tuner supports several configurable temperaments including Equal, Pythagorean, Just Intonation (Major and Minor), 1/4 Comma Meantone, Kirnberger Third Method, and Werkmeister First Technique Third Method.

### What is the price of @Tuner?

@Tuner is available for a one-time purchase of $2.99. This price grants you access to all its features without recurring fees.

### What iOS version is required for @Tuner?

@Tuner requires iOS 8 or above to function. It is compatible with iPhone 4S/5/5S/5C/6/6S/6plus/6S-plus, and the fifth generation iPod touch or later.

### Does @Tuner have ads?

No, @Tuner does not contain advertisements. Users can enjoy a completely ad-free tuning experience.

### How often is @Tuner updated?

The latest version of @Tuner is 1.4.2, last updated on September 17, 2025. Updates typically address bugs and introduce new features to enhance user experience.

### Can I use @Tuner with an external microphone?

Yes, you can use an external microphone with @Tuner for maximum performance, especially for achieving the widest measurement range. However, it does not support specialized mic devices connected through a Lightning port.

## Version history (last 5 releases)

### 1.4.2 — 2025-09-17

Minor fixes have been made.

### 1.3.3 — 2019-11-26

-Fix for iOS13

### 1.3.2 — 2019-01-24

- Fixed UI for New iPhone models.
- Some miner bugs are fixed.

### 1.3.1 — 2016-09-26

- Fixed UI for iPhone7 and iPhone7Plus.
- Some miner bugs are fixed.

### 1.3 — 2016-06-13

- Needle movement improvement
- PITCH PIPE playback bug fix
- Transition for tell a friend (Twitter, Facebook) has changed
- Other minor bug fixes

## Apps similar to @Tuner

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [TonalEnergy Tuner & Metronome](https://appshunter.io/ios/app/tonalenergy-tuner-and-metronome/id497716362) | 4.9 (54,657) | $6.99 | Music |
| [Tuner & Metronome -Soundcorset](https://appshunter.io/ios/app/tuner-and-metronome-soundcorset/id918055824) | 4.1 (871) | Free | Music |
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| [Pano Tuner Lite](https://appshunter.io/ios/app/pano-tuner-lite/id449780743) | 4.7 (7,584) | Free | Music |
| [n-Track Tuner](https://appshunter.io/ios/app/n-track-tuner/id409786458) | 4.7 (3,120) | Free | Music |
| [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,461) | Free | Music |

## More apps by 株式会社クリーブウェア

- [@Metronome](https://appshunter.io/ios/app/metronome/id1046423120)

All apps by 株式会社クリーブウェア: https://appshunter.io/developer/943315340

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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 2026-08-01.*