Best 6 Guitar Tuner Apps in 2026: Compare Your Options

Introduction

Fender Tune is the best overall guitar tuner app in this roundup. It offers several tuning modes and supports guitar, bass, and ukulele. It’s listed for iOS. The six apps below are compared by platform, instrument support, tuning options, and useful extras to help you find one that fits.

Quick comparison table

Fender Tune and Guitar Tuner Pro list support for guitar, bass, and ukulele. GuitarTuna supports guitar and other instruments. BOSS Tuner and gStrings are chromatic tuners for multiple instruments, while Simply Tune is listed as a guitar tuner. Fender Tune specifies automatic, manual, and chromatic modes; BOSS Tuner, Guitar Tuner Pro, and gStrings specify chromatic tuning. Extras include alternate tunings, chords, tabs, practice tools, and an audible reference pitch.

1. Fender Tune: Guitar Tuner App

Best for: iPhone users who want several tuning approaches and practice features.

Fender Tune covers guitar, bass, and ukulele, with automatic, manual, and chromatic modes. It also includes alternate tunings and practice tools, so it offers more than a basic tuning screen. The main draw is the combination of three named tuning modes and support for multiple instruments.

2. GuitarTuna: Tune & Play Guitar

Best for: Guitarists who want learning features alongside tuning.

GuitarTuna uses your device’s microphone to tune guitar and other instruments. It also lists alternate tunings, chords, tabs, and practice tools. Those extras are useful if you want one app for tuning and guitar-learning references, rather than a tuner alone. Its range of learning features sets it apart.

3. BOSS Tuner

Best for: Android players who want chromatic tuning and a reference pitch.

BOSS Tuner is a chromatic tuner for guitar, bass, and other instruments. It also has an audible reference-pitch function, letting you compare a sound with the note instead of relying only on the visual tuner. The focus stays on tuning, with another way to check a note when you need it.

4. Guitar Tuner Pro: Music Tuning

Best for: Android guitarists who want a chord reference nearby.

Guitar Tuner Pro tunes guitar, bass, and ukulele using your phone. Its listed features include a chromatic tuner and a chord library, so you get note-by-note tuning plus a guitar chord reference. If those are the two tools you want in one app, it’s a clear alternative to a tuner-only option.

5. Tuner - gStrings

Best for: Android players who need chromatic tuning for different instruments.

gStrings is a chromatic tuner for guitar, violin, and other instruments. Its listed purpose is focused on tuning, which may suit players comparing apps by instrument range and chromatic support rather than extra learning tools. Check its instrument support to make sure it covers what you play.

6. Guitar Tuner - Simply Tune

Best for: Android users looking for a dedicated guitar tuner.

Simply Tune is listed on Google Play as a guitar tuner app. The available details confirm its focus but don’t specify tuning modes, support for instruments beyond guitar, or extra features. It’s a straightforward option to consider alongside Android apps in this roundup that list chromatic tuning, a chord library, or reference pitch.

How we picked these apps

This roundup includes all six supplied apps, with links to their official store listings in their individual sections. Platform availability is noted so you can narrow the list to iOS or Android.

We focused on details that matter for tuning: the instruments each app lists and the tuning modes it specifies. Extras appear only where stated, including reference pitch, chords, tabs, alternate tunings, and practice tools. We don’t make claims about accuracy, pricing, ads, or privacy, and this comparison doesn’t imply independent hands-on testing.

Frequently asked questions

Do I need a chromatic guitar tuner app?

Chromatic tuning handles notes beyond standard guitar tuning, which can help if you use alternate tunings or tune other instruments. Fender Tune also lists automatic and manual modes. Choose based on the instruments and tunings you use.

Can a phone tune instruments other than guitar?

Several apps explicitly list support for other instruments. Fender Tune and Guitar Tuner Pro include bass and ukulele; BOSS Tuner lists bass and other instruments, while gStrings lists violin and other instruments. GuitarTuna also supports other instruments. Check each app’s stated support before downloading.

Which guitar tuner app should I choose on Android?

Choose BOSS Tuner for chromatic tuning with an audible reference pitch, Guitar Tuner Pro for chromatic tuning and a chord library, or gStrings for chromatic tuning across instrument types. Simply Tune is a dedicated guitar tuner. Fender Tune and GuitarTuna are listed here for iOS.

The verdict

Fender Tune is the strongest overall pick based on its listed features. It supports guitar, bass, and ukulele, offers automatic, manual, and chromatic modes, and includes alternate tunings and practice tools. It’s available for iOS, though, so it may not suit Android users. GuitarTuna is an iOS runner-up, with chords, tabs, and practice tools. On Android, consider BOSS Tuner for chromatic tuning and an audible reference pitch.