Fine Tuner is a light, minimalistic tuner with a user interface optimized for guitar, bass, violin, ukulele, banjo and other string instruments. It utilizes your device's built-in microphone. The app includes dozens of guitar tunings as well as several tunings for a variety of other instruments. Fine Tuner also has the ability to tune to a custom note and can be used to tune almost any instrument.

The free version of the app includes standard guitar, drop d, and double drop d tunings.


- Built in tunings for guitar, bass, 4-string / 5-string banjo, ukulele, violin, viola, cello, mandolin, cuarto, charango.
- Support for changing the standard A tuning (e.g. 432 Hz).
- Auto mode for minimal app interaction while tuning.
- Dark mode.

What’s New

Version 2.3.4

Fixed a UI bug with the tunings side panel when dark mode is enabled.

Ratings and Reviews

4.1 out of 5
312 Ratings

312 Ratings

Game Programmer Nerd ,

Wonderful Tuner

I love all the features of this tuner. I love the different tuning selections for the guitar and other string instruments. I use it tune my guitar, bass, cello, etc. I even suggest this tuner to my music students, because of accuracy and easy reading when the instrument is in tune.


This tuner is missing 2 important instruments in its lists of string instruments. It does not have a 7th, 8th, or 9th string guitar tuning. I had to get another tuner for that. It is also missing a mandolin tuner, once again have to go with another tuner. This is very disappointing! Please add these instruments in. Also would I would add like the fiddle or other string instruments. so other Then this would be the perfect string instrument tuner!

Cosmic Ronin ,

Fairly impressed!

This app is perfect and is my preferred tuner. Well worth the inexpensive cost of purchase for the full app. Improvements suggested would be saving preferred instrument tunings to the top of the list, and adding additional tuning standards such as E4=333hz (whatever that would equate to with the A4) seems like it would be rather easy for a mathematical function to reproduce more settings... perhaps an variable slider with value inputs. Additionally, the dark theme is perfect in my view. Might be worth while to include some sort of linked information on when and how metal and nylon (and etc.) strings will likely break. Perhaps another reading on purchasing new strings and descriptions of various tunings links (their vibes, their feel, their usage, etc.)

Rackon23 ,

A nice hz tuner

Playing a 12 string I use HZ to tune since there is so much leeway in the auto guitar tuners. Both double b or e strings will show they are in tune but they aren’t the same so the sounds not right. Using this app I can get both strings at the same HZ so they are about as close as you can get. Using it on the other strings works by using the HZ but the in tune indicator only works for the main strings. For the higher strings you have to use the Hz. Still it does what I need and does a good job.
I thought about upgrading tp pro for $2.99 but it didn’t have a 12 setting so the wasn’t any need.


9928189 Canada Inc.
6.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Pro Upgrade $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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