# PolyTune

> Polyphonic tuner app for guitar and bass, mirroring award-winning pedal technology. (iPhone/iPad app by TC Electronic.)

- Source: https://appshunter.io/ios/app/polytune/id364009203 (this page in markdown: same URL + `.md`)
- Developer: [TC Electronic](https://appshunter.io/developer/364009206)
- Category: Music
- Price: $4.99
- Rating: 2.80/5 from 79 App Store ratings · 513 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 45 MB
- Languages: American English
- Released: 2010-06-02
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/polytune/id364009203/reviews.md

## What is PolyTune?

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.

Specifications:
- 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

## Key features

- Tune all strings at once
- Guitar/bass mode
- Drop tunings support
- Award-winning pedal technology
- Chromatic tuning modes
- High accuracy

## What do users think of PolyTune?

Overall sentiment: positive

**Pros**

- 🩵 Works really well
- 💯 Accurate and precise
- 🔢 Polyphonic tuning mode
- 🎨 Customizable display colors
- 🔌 Works with electric and acoustic guitars
- 🔍 Responsive individual string tuning

**Cons**

- 🐛 Crashes or freezes on newer iOS versions
- 🔇 Struggles to pick up low strings or in noisy environments
- ⏱️ Screen dims during use
- 🚫 No support for alternate/custom tunings
- 💤 Drains battery quickly when running in background

**Commonly reported bugs**

- Crashes on launch
- Unable to detect or tune certain strings
- Inaccurate tuning readings

**Most requested features**

- Add support for 432Hz tuning
- Implement custom tuning options
- Improve compatibility with external audio interfaces
- Add a dedicated on/off switch

## Recent user reviews (10 of 513)

All indexed reviews: https://appshunter.io/ios/app/polytune/id364009203/reviews.md

### 1/5 — Bad Contrast 、表示が暗いです

*2025-08-27, version 2.0.0*

暗くて見にくいiPhoneの照度を最大にしてちょうど良いくらいなのでもう少しコントラスト出るように明るくしてほしいです。 

8年間メンテナンスされてないアプリだから無駄かもしれない。

買収後ダメになった会社

### 1/5 — 아이폰14프로맥스에서 피드백 하울링 뜨면서 사용불가

*2025-08-15, version 2.0.0*

업댓 해주실거죠? 유료앱인데, 오늘 앱만 열어도 피드백이 생겨서 사용을 못하고 있네요 아놔 진짜

### 5/5 — It’s The Nuts

*2025-08-14, version 2.0.0*

I’ve had this tuner app since it came out. It’s fantastic. I never leave home without it.

### 5/5 — 🩵

*2025-07-15, version 2.0.0*

It actually works really well. What a bargain.

### 5/5 — Please Update and add features!

*2025-06-10, version 2.0.0*

I recently bought this app as Inlove polytune. but please if you could give an update like more options on pitch Hz low to 420hz up to 455hz and more instrument to tune not only guitar and bass. Thanks in Advance!

### 4/5 — 432 Hz please!

*2025-02-09, version 2.0.0*

please add 432 Hz pitch! biGThanks

### 2/5 — Only work if you turn the guitar very loud

*2025-02-02, version 2.0.0*

Not working for bed room level. Disappointed.

### 5/5 — Ottima

*2024-12-10, version 2.0.0*

Peccato che non venga più aggiornata da anni.

### 3/5 — iOS18対応アプデ求む！

*2024-10-15, version 2.0.0*

18にアップデート後に起動すると常時ノイズがしてチューニング出来ません。いつでも何処でもポリチュしたいので早急に対応お願いします♪

### 2/5 — iOS 18 update please

*2024-09-18, version 2.0.0*

Since updating to iOS 18 it doesn’t function properly anymore. Every sound is being picked up by the microphone and sends right back through the speakers resulting in a scratching sound like FaceTiming with someone sitting next to you. 

Switching to the Peterson app for now until this hopefully gets resolved.

## Frequently asked questions about PolyTune

### What does the PolyTune app do?

The PolyTune app is a powerful and accurate tuning tool for guitar and bass players. It allows you to tune all strings simultaneously by strumming them, and it offers various modes and features for precise tuning.

### What are the key features of PolyTune?

Key features include the ability to tune all strings at once, dedicated guitar/bass modes, support for drop tunings, and 0.5 cent accuracy. It also offers two chromatic tuning modes: Needle and Stream, and MonoPoly technology to detect single or multiple string plays.

### How much does PolyTune cost?

Based on the provided information, this application is a paid app. There are no mentions of in-app purchases or ads, suggesting a one-time purchase for full functionality.

### What instruments can I tune with PolyTune?

The app is specifically designed for tuning guitars and basses. It includes dedicated modes for these instruments and supports a range of drop tunings suitable for various guitar and bass setups.

### Is PolyTune accurate and easy to use?

Yes, the app is designed for speed, accuracy, and ease of use. It boasts 0.5 cent accuracy and its polyphonic tuning approach allows musicians to get in tune quickly and efficiently, mirroring the functionality of its award-winning pedal counterpart.

## Version history (last 3 releases)

### 2.0.0 — 2017-01-13

This update from Apple will improve the functionality of this app. No new features are included.

-updated UI
-Graphical changes
-new icon

### 1.1.0 — 2010-12-16

- colorblind mode 
- updated graphics with support for retina display

### 1.0.00 — 2010-05-20

No release notes.

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## More apps by TC Electronic

- [TonePrint](https://appshunter.io/ios/app/toneprint/id432767616)
- [Clarity X](https://appshunter.io/ios/app/clarity-x/id1059744143)
- [WireTap Riff Recorder](https://appshunter.io/ios/app/wiretap-riff-recorder/id1078539132)
- [tc](https://appshunter.io/ios/app/tc/id1660229719)

All apps by TC Electronic: https://appshunter.io/developer/364009206

## Related topics

[tc electronic](https://appshunter.io/ios/topics/tc-electronic) · [tribe music](https://appshunter.io/ios/topics/tribe-music)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*