# Guitar Tuner TN-1G — Best tuner for your guitar

> High-precision guitar tuner with alternative tunings and drum machine. (iPhone/iPad app by Blowbend.jp.)

- Source: https://appshunter.io/ios/app/guitar-tuner-tn-1g/id754125890 (this page in markdown: same URL + `.md`)
- Developer: [Blowbend.jp](https://appshunter.io/developer/535422149)
- Category: Music, Utilities, Music
- Price: Free with in-app purchases
- Rating: 4.50/5 from 2 App Store ratings · 21 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 69 MB
- Languages: English, German, Indonesian, Italian, Japanese, Spanish
- Released: 2013-12-01
- Data updated: 2026-08-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/guitar-tuner-tn-1g/id754125890/reviews.md

## What is Guitar Tuner TN?

It's very easy! Fine tuning for all guitarists.

TN-1G is tuning meter only for guitarists.
It detects the pitch of notes that picked up by a microphone, and it displays the difference from the right pitch. It's easy to use, but high-precision, high-performance, and supports alternative tuning sets of more than 50.

◆It's really easy to use.

◆High-precision, high-performance.

◆Supported tuning-sets:

  ・Standard, Half Step Down, Full Step Down, 1&1/2 Steps Down, Drop-D, Drop-D(half step down), Double Drop-D, Drop-G, Drop-C, Drop-C&G, Drop-C#, Drop-C(another set), Drop-B, Drop-A#, Drop-A, Open D, Open E, Open E7, Open Dm, Open Em, Open Em7, Open Dmaj7, Open Dadd9, Open G, Open A, Open A(another set), Open Gm, Open Am, Open Am7, Open G7, Open Gmaj7, G6, Dsus(DADGAD), Open C, C6, Open F, F6, Taro Patch, G Wahine, Leonard's C, C Major(Atta's C), Keola's C, Mauna Loa, Old Mauna Loa, Dmaj7 Wahine, F Wahine, Double Slack F, Modal G(Gsus), Open C(another set), Open C#, Open Cm, C Spanish and Perfect 4th

◆It has a simple drum machine function.
  ・The rhythm pattern that you made, you can send to your friend by AirDrop or email.
  ・And also the data is a common use with TN-1B(bass tuner), you can share the rhythm pattern with the bassist of your band.

◆You can change reference pitch-A between 438Hz and 445Hz.

◆You can change note notation language.
  ・English(C, C#, D, E… , B)
  ・Italian(Do, Do#, Re, Mi… , Si)
  ・German(C, Cis, D, E… , H)
  ・French(Ut, Ut#, Ré, Mi… , Si)
  ・Chinese(C, 升C, D, E… , B)

◆TN-1G has a tuning fork that emits a pitch corresponding to each string.

## Key features

- High-precision tuning meter
- Over 50 alternative tuning sets
- Simple drum machine function
- Adjustable reference pitch (438-445Hz)
- Multiple note notation languages
- Rhythm pattern sharing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Recent user reviews (10 of 21)

All indexed reviews: https://appshunter.io/ios/app/guitar-tuner-tn-1g/id754125890/reviews.md

### 5/5 — 今更ながら感謝を

*2025-05-03, version 3.4.1*

再度のレビューしつれいします。メールも以前おくったのですが、私がカポ機能の追加について失礼な態度で頼み込んでしまったのに対して、真摯に対応してくださり、機能を追加してくださったことに今でも感謝しきれません。無料でこれだけ良い機能が使えるアプリはこれだけだと思います。もっと広まって欲しいと切に願います。ありがとうございました。

### 5/5 — Very useful!

*2023-12-15, version 3.3.5*

Been using it for years. Tons of alternative tunings! Highly recommend.

### 1/5 — Do not recommend

*2021-06-23, version 3.2.8*

First thing I went to the app I was confused about the e string I don’t know what was the “e string” do not recommend 😭

### 2/5 — んー

*2020-05-26, version 3.2.3*

iPhoneの機種の問題かもしれませんが、自分のスマートフォンではチューニングが合いませんでした。
針が右に行ったり左に行ったりして中々チューニングできません笑てかできません笑

しかし良い点を言えばチューニング出来る種類が多いのでは無いでしょうか、ドロップCのチューニング出来るアプリはこのアプリぐらいしか見かけませんでしたし。

機種変したらまた入れたいと思います〜

長文失礼しました(･д･｡)

### 5/5 — 415HZがほしい。

*2020-05-08, version 3.2.3*

415HZがほしいです。

### 5/5 — チューナーなら絶対コレ！

*2020-02-02, version 3.2.3*

無料で使えるギターチューナーはたくさんあるけど、変則チューニングも対応しているチューナーは皆無に等しい。
ボトルネックを小指にはめて、マディやエルモアの古臭いBluesをスライドギターでやる私にとって、オープンチューニング対応は必須。
使い勝手もいいから知り合いのギター弾きは皆んなコレ。

### 5/5 — 前まで別のアプリを使っていたが

*2020-02-02, version 3.2.3*

ドロップＤチューニングが
出来るアプリを探した結果このアプリに
たどり着きました。
ドロップＤは初めてやったのですが
無料で簡単に出来たので助かりました。

### 5/5 — TN1G

*2019-07-10, version 3.1.5*

It is a great app, highly recommend it! I’ve been using the same app over all of my devices that I own over the past few years and still have never had a problem with it.👍

### 1/5 — まだ大きい

*2017-08-29, version 2.8.0*

まだ大きい

### 5/5 — 便利！正確！

*2017-08-29, version 2.8.1*

無料アプリの決定版です。

## Frequently asked questions about Guitar Tuner TN

### How does Guitar Tuner TN-1G detect the pitch?

Guitar Tuner TN-1G detects the pitch of notes picked up by your device's microphone and displays the difference from the correct pitch. It is designed for high precision and performance.

### What alternative tuning sets does Guitar Tuner TN-1G offer?

Guitar Tuner TN-1G supports over 50 alternative tuning sets, including Standard, Drop-D, Open D, Open G, and many more modal and specialized tunings.

### Can I share rhythm patterns from the drum machine?

Yes, you can share rhythm patterns created in the drum machine function via AirDrop or email. This feature also allows sharing with users of TN-1B (bass tuner).

### What is the reference pitch range for Guitar Tuner TN-1G?

You can change the reference pitch-A for Guitar Tuner TN-1G between 438Hz and 445Hz to suit your tuning needs.

### Does Guitar Tuner TN-1G have ads?

Yes, Guitar Tuner TN-1G contains advertisements. This allows the app to remain free for users.

### What note notation languages are supported by Guitar Tuner TN-1G?

Guitar Tuner TN-1G supports multiple note notation languages, including English, Italian, German, French, and Chinese, making it accessible to a global audience.

### What devices is Guitar Tuner TN-1G compatible with?

Guitar Tuner TN-1G is available for iPhone and iPod devices. It requires iOS 4.3 or later and was last updated on September 20, 2025.

### What is the age rating for Guitar Tuner TN-1G?

Guitar Tuner TN-1G has an age rating of 4+, making it suitable for a wide range of users. The app was first released on December 1, 2013.

## Version history (last 5 releases)

### 3.4.2 — 2025-09-20

- Fix some screen layouts.
I value your feedback, so if you have something to share then email me at tn1g.i@blowbend.jp. You can find a link to the mail in help.

### 3.4.1 — 2024-09-23

- Fix some screen layouts.
I value your feedback, so if you have something to share then email me at tn1g.i@blowbend.jp. You can find a link to the mail in help.

### 3.4.0 — 2024-04-27

- Add a function for capotasto.
- Minor bug fixes.
I value your feedback, so if you have something to share then email me at tn1g.i@blowbend.jp. You can find a link to the mail in help.

### 3.3.6 — 2024-02-06

- Minor bug fixes.
I value your feedback, so if you have something to share then email me at tn1g.i@blowbend.jp. You can find a link to the mail in help.

### 3.3.5 — 2023-10-07

- Minor bug fixes.
I value your feedback, so if you have something to share then email me at tn1g.i@blowbend.jp. You can find a link to the mail in help.

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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 2026-08-05.*