** 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 2.10.2

• Improved sensitivity
• Fixed bugs and improves overall stability

Ratings and Reviews

4.7 out of 5
633 Ratings

633 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!

SRay25 ,

Better Than Hardware Tuners

I love this app and use it constantly. I find it to be more sensitive and responsive than the stand alone hardware tuners I’ve owned and now don’t even bother with them though I still have them. I am a music producer and am tuning instruments on an almost daily basis, and this app hears the note sooner with less false readings and over a wider range of frequencies (from really low to really high) than the hardware. Highly recommended.

1OVA ,

Please add in-tune sound

This app is pretty straightforward with some added features that I personally don’t use (transposition/temperament). I bought it because I like its traditional look/vibe and the option to change background if/when I feel like it. I’ve been playing guitar for a long time now (almost 20 years) and have always tuned to a tuner that makes a sound signaling that the string is in tune, I would give it 5 stars if it had it. Please add it as a function, that would be great!


Hiroyuki Koike
62.8 MB

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


English, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish

Age Rating


  • Family Sharing

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

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