** More than 10,000,000 musicians are now using the Tuner by Piascore! **

"Tuner by Piascore" is a chromatic instrument tuner and pitch pipe that allows you to quickly and accurately tune your instrument using the built-in mic in your iPhone or iPad.

"Tuner by Piascore" supports a custom temperaments, transposition, notations such as solfège, adjustable calibration and more. By spectrum power indicator, you can understand sound more intuitively. "Tuner by Piascore" packs more power than most pro tuners, yet it is simple enough for everyone to use.

"Tuner by Piascore" can tune acoustic or electric guitar, bass, bowed strings, woodwinds, brass, piano, tympani, and any other instrument that can sustain a tone.

Free version "Tuner Lite by Piascore" is offered.

** Features **
- Needle meter display
- Ultra responsive 50 cents range fine tuning display
- LED display easy-to-understand high and low sound
- Accuracy ±0.01 semitone (±1 cent)
- Landscape view (iPhone5 or later)
- Power spectrum indicator
- Selectable Temperaments
- Selectable Notations (such as Solfège)
- Support for transposing instruments
- Pitch Pipe/Tone generator
- Automatic reference note calibration
- Changing the wallpaper

** Contact **

What’s New

Version 2.11.6

• Improved sensitivity
• Fixed bugs and improves overall stability

Ratings and Reviews

4.8 out of 5
978 Ratings

978 Ratings

Performing Arts Prof. ,

Can even tune groups of instruments or voices. IMPRESSIVE!

As a professional conductor I have tried a great many tuners. This is the one I have settled on and use the most consistently. It can even be used to tune groups of instruments, like violins or voices, by projecting the app face onto a big screen and allowing all to see the composite pitch. The players/singers quickly learn group tuning by biofeedback experience.

It is also the easiest tuner to accurately arrive at just intonation thirds in triadic harmonies ( Major= flat by 14 cents; Minor= sharp by 16 cents). The musicians quickly train themselves to tune accurately by ear, referring to the tuner less and less frequently. A GREAT app!

Starkman 1 ,

Easy to use

In my trumpet case there sits two expensive high end hand held tuners. But this app on my phone is the tuner that gets used instead. No batteries to worry about. It has s large display and is easy to use. Even a trombone player could figure it out!

One more thing. When you have this tuner out it also reminds you to silence your phone ringer for everything from a rehearsal, a concert or a gig. But those sliding brass pitch approximator trombone players have a hard time remembering to silence their phones let alone tune! We love you bones!

vcmjr ,

Excellent Tuner

A very simple to use app. Easy to set both frequency and temperament. Clear readout on meter. I have only one suggestion for improvement: the ability to create sets frequency and temperament settings, so the one could change from one tuning pattern to another with one click. I routinely play at A=440 at equal temperament and also at A=415 with one-sixth comma temperament. I would appreciate being able to switch quickly between the two tunings.

App Privacy

The developer, Piascore, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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