11 Best Free Guitar Tuner Apps for iOS & Android

What better guitar tuner app to trust other than one made by the world’s best-selling guitar brand? Fender Tune is the 5-star rated, completely free precision tuner app for guitar, bass, and ukulele from the most trusted name in guitars, Fender®.

This portable tuner boasts intuitive feedback to help first-timers tune-up in minutes and Fender’s DSP technology to ensure pitch-perfect accuracy for beginners and advanced players alike.

Through the app’s Auto-Mode setting, just pluck a string and the app hears the note and guides you into tune. A string-by-string diagram reflects each selected tuning.

This tuner app has been used and praised by millions of musicians and guitar players for its quick and professionally accurate tuning abilities. It works well for a wide range of instruments: Ukulele, violin, mandolin, flute, guitars, voice, and more. 

Simple controls and clear visuals make it great for beginners. Responsive and precise algorithms provide professional-level accuracy for more advanced players.

This tuning app also works as a pitch pipe and can sound a reference note to tune your instrument by ear (which is always a good skill to practice), or use as a target note when you are re-stringing your guitar/violin/etc.

The BOSS Tuner app brings BOSS’s trusted and world-renowned chromatic tuning technology to Android mobile devices. Available as a free download, the convenient app features the familiar look and intuitive display style of the best-selling TU-3 / TU-3W pedal tuner. 

Using the mic on your Android device, you can tune a guitar, bass, and other instruments like violin, cello, brass, etc.

GuitarTuna has been downloaded over 100 million times. It’s fast, accurate, easy to use, with  100+ different tunings, a metronome, chromatic tuner, various tools, and more

Start using GuitarTuna by plucking any string on your instrument. The app will use the microphone on your device (no cables needed) to detect the string’s pitch and give you instant tuning feedback.

Tuning has never been easier — or more accurate. GuitarTuna combines award-winning audio recognition technology with noise cancellation to get you the insanely precise tuning result you need.

Ultimate Guitar Tuner works by analyzing the signal from your smartphone’s mic. It will work with any electric guitar, acoustic guitar, or any other string instrument you want with no cable needed. 

The interface is simple, intuitive, and will show you in real-time if you are too sharp or too flat. Then, react to every change you make. This makes it very easy for complete beginners to start tuning their instruments

This app isn't just a typical guitar tuner. It's a precise, responsive, and easy-to-use chromatic tuner that will suit all your needs. You can fine-tune your guitar, bass, ukulele, or mandolin in seconds — all from your mobile phone.

Simply Tune is created by JoyTunes, developers of award-winning apps Simply Piano and Simply Guitar. It works with any acoustic or electric guitar, with no experience needed. This app guides you through the tuning process step by step with easy-to-understand visuals, showing you in which order you need to pluck your strings & indicating if the string is tuned right, too high, or too low.

The automatic tuner automatically detects the closest string to the played pitch & the manual tuner tells you how close you are to the string you choose. Not only is this fantastic tuning app completely free to download, but it is also the #1 top-rated tuner app in the world! With many instruments to choose from, you can be up and playing in less than a minute.

smartChord is one of the most versatile guitar apps available for Android device users. Not only does it include a precise chromatic tuner, but it also integrates many more advanced features like its built-in metronome, chord progressions, setlist maker, fingerpicking training, personal songbook, online editor, lyric viewer, plus so much more. 

Though there are some features that can only be accessed through the app’s paid version, 90% of them are completely free. SmartChord is truly the all-in-one app for any beginner or professional guitar player.