# 12-String Guitar Tuner Simple

> Simple tuner for 12-string and 6-string guitars with standard tuning. (iPhone/iPad app by Pavel Nikitenko.)

- Source: https://appshunter.io/ios/app/12-string-guitar-tuner-simple/id330647891 (this page in markdown: same URL + `.md`)
- Developer: [Pavel Nikitenko](https://appshunter.io/developer/320174771)
- Category: Music, Utilities
- Price: $0.99
- Rating: 3.50/5 from 44 App Store ratings · 70 written reviews indexed
- Age rating: 4+
- Requires: iOS 5.1.1 · 27 MB
- Languages: American English
- Released: 2009-10-03
- Data updated: 2026-09-14
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/12-string-guitar-tuner-simple/id330647891/reviews.md

## What is 12?

Simple 12-string guitar tuner to tune up your 12-string guitar. This is for the standard eEaAdDgGBBEE 12 String Guitar tuning.

Tuning your guitar can be a difficult task for you if you are just beginning guitar. The good news is, the more you do it, the easier it becomes. A nicely tuned guitar can make your music sound a lot better and help you greatly while you're are just getting the hang of finger placement for notes.

A 12 string guitar is split up into 6 pairs of 2 strings. The thicker string of the pair is tuned to the same note and octave as a regular 6 string guitar. The thinner string, on the pair of strings 3-6, is tuned one octave higher than it's pair. On the first and second pairs, the notes are the same octave and each string in the pair should sound exactly the same to it's other string in the pair. This is eEaAdDgGBBEE tuning. The lowercase letters means that it is one octave higher then it's counterpart. 

Touch the note for the string you want to tune and then turn the tuning pegs on your guitar and match it up with the note that is being played.

Tip: Make several passes tuning each of the strings. For example you might have noticed that if you have tuned all the strings once, and then back to the first one you tuned, it might be off a little bit. This is because you are increasing or decreasing the tension on each of the strings as you tune it and the instrument's body might bend ever so slightly due to this difference in tension. This causes the other strings to slightly change in pitch. So make sure you keep on checking and tuning the strings until all are in tune, so make several passes.

Also you can use this simple tuner for your standard 6-String Guitar, it is the same tuning, only the strings on the 6-String Guitar are EADGBBEE, which is right part of this 12-String Guitar Tuner. So use just right part of this tuner to tune up your 6-String Guitar.

Any questions using the App? Write support@tuneinstrument.com and we we'll get back to you promptly.

If you need to tune other music instruments simply have a look into our other applications: Violin Tuner Simple, Cello Tuner Simple, Banjo Tuner Simple, Mandolin Tuner Simple, Double Bass Tuner Simple, Viola Tuner Simple, Guitar Tuner Simple, Ukulele Tuner Simple, Bass Tuner Simple.

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## Key features

- 12-string guitar tuning
- Standard eEaAdDgGBBEE tuning
- Plays reference notes for each string
- Supports 6-string guitar tuning
- Easy-to-use interface

## What do users think of 12?

Overall sentiment: negative

**Pros**

- 👍 Simple and easy to follow
- 👍 Quick and easy tuning
- 👍 User-friendly mode
- 👍 On target with tuning
- 👍 Great for 12-string guitars
- 👍 Works well for needs
- 👍 Perfect for gigging or on the move
- 👍 Saves a lot of time
- 👍 Helps tune ears
- 👍 Simple but effective
- 👍 Makes tuning 12-string easy
- 👍 Happy with the app
- 👍 Works great, guitar in tune

**Cons**

- 🐛 Crushing constantly
- 🐛 Does not work on iPad Pro
- 🐛 Useless product
- 🐛 No microphone
- 🐛 Not a tuner, just plays tone
- 🐛 Doesn't indicate note is right
- 🐛 Not at all helpful
- 🐛 Lächerlich, Abzocke
- 🐛 Absolute Waste
- 🐛 Waste of money
- 🐛 Waste of time
- 🐛 Doesn't do anything, crashes
- 🐛 Rubbish app
- 🐛 Simply bad, glorified tuning fork
- 🐛 Ripoff, not a tuner
- 🐛 Disappointed
- 🐛 Crummy app, not a tuner
- 🐛 Not a tuner, plays strings
- 🐛 Feel cheated, wrong octave
- 🐛 Upset, dumb app with sound
- 🐛 Not a Tuner, expected more
- 🐛 Really disappointed, pitch pipe
- 🐛 Very poor, doesn't help
- 🐛 DONT BUY, rip off
- 🐛 Waste of money, not a tuner
- 🐛 Crashes on opening
- 🐛 App quits
- 🐛 Keeps closing
- 🐛 Don't buy, doesn't work
- 🐛 Product, times out, returns to main page
- 🐛 It do not work
- 🐛 Ripoff, crashes
- 🐛 App broke, crashes
- 🐛 No App, just a picture
- 🐛 Rip-off, no sound
- 🐛 Doesn't work
- 🐛 Crap, did not work
- 🐛 Is this a joke? Not a tuner
- 🐛 Notes wouldn't play
- 🐛 Rubbis, no sound
- 🐛 Totaler Betrug, stummer Screen
- 🐛 Wouldn't recommend
- 🐛 Tune by ear, not easy
- 🐛 Taugt nix
- 🐛 Bad app, quit working
- 🐛 Worst tuner app
- 🐛 Can't tune down strings

**Commonly reported bugs**

- Crushing constantly
- Does not work on iPad Pro
- No microphone functionality
- App crashes on opening
- App quits when opened
- Note getting stuck
- Update broke the app
- Loads picture then crashes
- No sound
- Top E string octave lower than it should be

**Most requested features**

- Use the microphone for tuning
- Add visual confirmation (e.g., green indicator)
- Allow tuning down strings
- Change MHz up and down

## Recent user reviews (10 of 70)

All indexed reviews: https://appshunter.io/ios/app/12-string-guitar-tuner-simple/id330647891/reviews.md

### 2/5 — Crushing

*2026-01-08*

For unknown reasons the app is crushing constantly. It will not work on iPad Pro at all.
Excellent before , suddenly it stopped working…

### 5/5 — 12 String tuner

*2025-11-30*

I love this app it’s exactly what I wanted!
When you want to tune all you need is the correct notes to tune each string to. I spent along time going through other apps and YouTube videos that explain things but didn’t give me what I wanted. This is simple and therefore easy to follow.

### 1/5 — Useless product

*2025-04-01, version 2.1.3*

Useless product

### 5/5 — Easy to Use!

*2023-06-12*

It’s a quick and easy way to tune a 12 string if you don’t know how.

### 1/5 — No microphone

*2023-06-09*

Just plays sound

### 1/5 — Not a tuner-just plays tone

*2022-08-10*

You have to match the tone of the guitar to a tone that comes from your phone’s speaker.  There are free tuners that provide visual confirmation that the string is tuned.  This is the first tuner that I have had to pay for - I do not recommend this application.

### 1/5 — Doesn’t indicate the note is right

*2021-02-22*

Unlike most tuning apps this doesn’t actually help you tune it just gives you a note to copy. It doesn’t go green when you get it right. Rip off.

### 5/5 — 12 Saiter Gitarren-Tuner

*2020-02-18*

Bin SEHR zufrieden !
Einfach & logisch aufgebaut .
Und statt digitalem Gedöns in der 
Tuning-Anzeige nutze ich 2 gesunde OHREN -
Klappt prima ;-))

### 5/5 — Amazing App!!

*2019-10-15*

This app is awesome! If I need to tune my guitar really quick, I just open the app and tune!! It’s really fast to do, also!

### 5/5 — On target

*2018-10-12*

I’m enjoying the user friendly mode on this tuner. It is usually right on the money with tuning; I have other tuning apps and tuners that aren’t always as reliable. Ease is what I need!!  This covers all angles very adequately !

## Frequently asked questions about 12

### What is this app for?

This app is designed to help you tune your 12-string guitar to the standard eEaAdDgGBBEE tuning. It achieves this by playing the correct note for each string, allowing you to match your guitar's pitch by adjusting the tuning pegs. It can also be used to tune a standard 6-string guitar.

### How do I use the tuner?

To use the tuner, simply touch the note corresponding to the string you wish to tune. Then, turn the tuning pegs on your guitar until the sound produced by your guitar matches the note played by the app. For best results, make several passes tuning each string, as adjusting one string can slightly affect the pitch of others.

### Can this app tune other instruments?

While this app is specifically designed for 12-string and 6-string guitars, the developer offers other applications for tuning various instruments such as violins, cellos, banjos, mandolins, double basses, violas, ukuleles, and standard basses.

### Is this app free to use?

Yes, based on the provided information, this application is free to use and does not contain in-app purchases or advertisements.

### What is the standard tuning for a 12-string guitar supported by this app?

This app supports the standard eEaAdDgGBBEE tuning for 12-string guitars. In this tuning, the lowercase letters indicate strings tuned one octave higher than their paired thicker string. For the first two pairs, both strings are tuned to the same octave.

## Version history (last 5 releases)

### 2.1.3 — 2016-01-20

This update from Apple will improve the functionality of this app. No new features are included.

- Minor icon and splash screen fixes.

### 2.1.1 — 2016-01-14

- Allows 1/2 tune down/up transposed tuning. *Be careful to not brake string if you tune to higher tones.
- Improved slide view of the instrument.
- Added 64 bit support.

### 2.0.1 — 2013-12-18

- Fixed no sound issue, which confused users a lot. It was caused by mute switch on. In this version the sound is active even in silent mode, with mute switch on. Thank you for the feedback.

### 1.9.1 — 2013-09-25

Added IOS 7 and iPhone 5 S/5 C support.

### 1.9 — 2013-08-07

Fixed crash issues during the app start on some devices. 

Minor additional fixes.

## Apps similar to 12

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mandolin Tuner - LikeTones](https://appshunter.io/ios/app/mandolin-tuner-liketones/id6469453021) | 4.9 (1,132) | Free | Music |
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| [Banjo Tuner - LikeTones](https://appshunter.io/ios/app/banjo-tuner-liketones/id6468869463) | 5.0 (2,576) | Free | Music |
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## More apps by Pavel Nikitenko

- [Mandolin Tuner Simple](https://appshunter.io/ios/app/mandolin-tuner-simple/id327116709)
- [Banjo Tuner Simple](https://appshunter.io/ios/app/banjo-tuner-simple/id327118321)
- [Ukulele Tuner Simple](https://appshunter.io/ios/app/ukulele-tuner-simple/id327119839)
- [Bass Tuner Simple](https://appshunter.io/ios/app/bass-tuner-simple/id327121397)
- [Violin Tuner Simple](https://appshunter.io/ios/app/violin-tuner-simple/id327215439)
- [Cello Tuner Simple](https://appshunter.io/ios/app/cello-tuner-simple/id329160048)

All apps by Pavel Nikitenko: https://appshunter.io/developer/320174771

## Related topics

[12 guitar](https://appshunter.io/ios/topics/12-guitar) · [12 string guitar tuner](https://appshunter.io/ios/topics/12-string-guitar-tuner)

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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 2026-09-14.*