# openTunes

> Open-code guitar tuner with selectable tuning and sound playback. (iPhone/iPad app by HAOKA-KIKAKU.)

- Source: https://appshunter.io/ios/app/opentunes/id486195455 (this page in markdown: same URL + `.md`)
- Developer: [HAOKA-KIKAKU](https://appshunter.io/developer/372937641)
- Category: Music
- Price: Free
- Age rating: 4+
- Requires: iOS 7.0 · 58 MB
- Languages: American English
- Released: 2011-12-12
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/opentunes/id486195455/reviews.md

## What is openTunes?

This is a tuner for open-code tuning of a guitar.
You choose an open-code on a memu, and push a tuning fork button. 
The head of a guitar appears and six sound is displayed. 
The head of a guitar has two kinds and you can change it. 
Letter names are buttons.
If a button is pushed, sound will sound for 12 seconds.

## Key features

- Open-code tuning selection
- Guitar head display
- Six-string sound visualization
- Two guitar head styles
- 12-second sound playback
- Letter name buttons

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/opentunes/id486195455/reviews.md

### 4/5 — Review

*2017-01-27*

Not a bad app considering it's free. Pity the writing is in Asian script, not that this is crucial to this particular app.

## Frequently asked questions about openTunes

### What is openTunes?

openTunes is a free application designed to help guitarists tune their instruments using open-code tunings. It offers a visual and auditory guide to achieve the correct pitch for each string.

### How does openTunes work?

You select your desired open-code tuning from a menu. The app then displays a guitar head with the six strings, and you can press letter name buttons to hear the corresponding sound for up to 12 seconds.

### Can I change the appearance of the guitar in openTunes?

Yes, openTunes offers two different styles for the guitar head display, allowing you to customize the visual interface to your preference.

### What devices is openTunes compatible with?

openTunes is available for iPhone and iPod devices. It requires iOS 4.3 or later.

### Is openTunes suitable for beginners?

Yes, openTunes is designed to be user-friendly, making it a good tool for beginners learning open-code tunings on the guitar.

### How often is openTunes updated?

The latest version of openTunes is 1.6, which was last updated on October 7, 2017. While it hasn't seen recent updates, it remains a functional tool for its intended purpose.

### Does openTunes have ads?

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

### What is the age rating for openTunes?

openTunes has an age rating of 4+, making it suitable for users of all ages.

## Version history (last 5 releases)

### 1.6 — 2017-10-07

This app has been updated by Apple to display the Apple Watch app icon.

The method which was playing a sound file was abolished, and the reference tone was changed so that I might rumble by a square wave.

### 1.5 — 2017-10-03

It corresponded to iOS11 and was 64bit application.
I changed the screen ratio to 16:9 and answered to the Retina display resolution.
More than one sound rumbling method was set to 1.
I made sure that chosen tuning and guitar shape can be memorized.

### 1.3 — 2012-07-10

openTunes distinguished OS automatically and was carrying out speech processing according to it until now. 
It corresponds to a part of requests, and a user can choose speech processing now.

### 1.2 — 2012-05-24

Sound of the tuning fork was made into high-quality sound. 
However, it is only iOS5. 
In the case of old OS, it is still the original sound quality.

### 1.1 — 2011-12-15

The injustice of the character was corrected.

## Apps similar to openTunes

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [UniTuner Pro - Chromatic Tuner](https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331) | 5.0 (1) | $4.99 | Music |
| [OpenTune: FM Radio No Ads](https://appshunter.io/ios/app/opentune-fm-radio-no-ads/id6745879421) | 4.9 (61) | Free | Music |
| [Banjo Chords Compass](https://appshunter.io/ios/app/banjo-chords-compass/id1015588286) | 3.5 (56) | $4.99 | Music |
| [Radio Port](https://appshunter.io/ios/app/radio-port/id6740069253) | 4.5 (2) | Free | Music |

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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 2026-06-05.*