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By TC Electronic

This app is only available on the App Store for iOS devices.


It's the most powerful tool you've ever had in your pants! You know ... for tuning. That said, this is one of those nuggets on the App store you cannot afford to miss if you value being in tune and you take your smartphone with you when you go places. Yes to both? Then it's a no-brainer!

- Tune all strings at once! Just strum your guitar, and see the pitch of all strings instantly.
- Guitar/bass mode
- Drop-tunings
- 1:1 port of the award-winning PolyTune pedal (Guitar Player, Guitar World, Premier Guitar, MIPA, NAMM Best in Show 2010, etc.)
- Based one the world’s best selling pedal tuner used by countless pros such as Steve Vai, John Petrucci, Steve Morse, Orianthi and many more!

PolyTune is the world's first polyphonic tuner that will have future guitarists wondering how we ever got by without it.

The magic lies in a never before seen approach to tuning aimed at speed, accuracy and ease of use, which allows you to get in tune fast, and back to doing what you love: playing.

The PolyTune iPhone app is a 1:1 port of the award-winning PolyTune pedal tuner, and PolyTune for iPhone delivers exactly the same features and tuning technology as the pedal version. The pedal version is the fastest way to tune on-stage, whereas the iPhone app is the fastest and most convenient way to tune off-stage.

- Reference pitch from 435Hz to 445Hz
- Drop tuning from E-flat to B
- 0.5 cent accuracy
- 2 chromatic tuning modes: Needle and Stream
- MonoPoly recognizes whether one or several strings are played at once

What's New in Version 2.0.0

-updated UI
-Graphical changes
-new icon


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPad Screenshot 1

Customer Reviews

Worth the buy!

Gotta be honest, this app is so worth it. I think it might be the most spendy non-subscription app I've purchased, and I only regret waiting so long to do so. The pedal version of TC PolyTune2 is amazing, and the app does everything a $150 (MSRP) pedal does for 1/30th the price.

One major advantage of the pedal version is how it isolates the instrument, and is not affected by ambient sounds, and that's perfect for noisy, musical environments, where a quick tune or de-tune is needed. I haven't experimented with it yet, but I'll bet I could use the headset jack with an adapter to get line-in on my iPhone or iPad--or use an effects send from a mixer.

Anyway, great to use, easy to understand, scorchingly fast and accurate. SPEND THE MONEY.

Beautifully done

I was really disappointed when my trusty old Fastune HT6 became obsolete due to iOS 11 requiring only 64-bit apps, especially because the last time I looked for a more modern polychromatic tuner to replace it, I couldn't find one. I was relieved to discover the existence of PolyTune, which seems to work really well, and I love the simple, elegant interface.

New PolyTune update screws up tuner accuracy

I've owned this App for years and its worked better than any other tuner on the App store, until it recently auto Updated itself to a new version with new look and function...

The new version, is really quite insensitive and non responsive in general and specifically to the lower A and E strings of any acoustic guitar on all my iPhones and iPads including iPhone 7.

Do not buy it - Since the company released their new hardware PolyTune clip product, it seems they deliberately dumbed down the App, to encourage the hardware purchase over the App.

View in iTunes
This app is designed for both iPhone and iPad
  • $4.99
  • Category: Music
  • Updated:
  • Version: 2.0.0
  • Size: 46.9 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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