# BOSS Tuner

> Free chromatic tuner app for iOS with audible reference pitch and wide instrument support. (iPhone/iPad app by Roland Corporation.)

- Source: https://appshunter.io/ios/app/boss-tuner/id1113473319 (this page in markdown: same URL + `.md`)
- Developer: [Roland Corporation](https://appshunter.io/developer/387333694)
- Category: Music
- Price: Free
- Rating: 3.70/5 from 118 App Store ratings · 132 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 7 MB
- Languages: American English, Japanese
- Released: 2016-06-16
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/boss-tuner/id1113473319/reviews.md

## What is BOSS Tuner?

The BOSS Tuner app brings BOSS’s trusted and world-renowned chromatic tuning technology to iOS 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 in your iOS device, you can tune a guitar, bass, and other instruments like violin, cello, brass, etc.
 
Features
- Provides hands-free chromatic tuning for a variety of instruments
- Audible reference pitch function for tuning by ear
- Supports horizontal screen to enlarge meter view
- Tuning range: A#0 (29.14 Hz)--G8 (6,271.93 Hz)
- Tuning accuracy: +/- 1 cent
- Newsfeed for the latest BOSS info
 
Find more BOSS tuner products at:
http://www.boss.info/categories/tuners_metronomes/

## Key features

- Hands-free chromatic tuning
- Audible reference pitch
- Horizontal screen for enlarged meter
- Wide instrument compatibility
- Newsfeed for BOSS updates

## What do users think of BOSS Tuner?

Overall sentiment: mixed

**Pros**

- ✅ Works as expected
- 🆓 Free to use
- 🎶 Covers alternate tunings
- 👍 Simple and focused tuner
- 💯 Highly recommended
- 🎸 Great for guitar tuning
- 📱 Handy on-the-go tuner
- 💡 Innovative virtual pedal design
- 🎶 Accurate and fast tuning
- 📱 Works well on iOS devices
- 🎸 Industry standard tuner
- 💯 Reliable and well-built
- 📲 Ideal for non-standard tuning
- 🆓 Free, no subscription
- 🎸 Mimics real pedal experience
- 🎶 Excellent for various instruments
- 💯 Boss quality and reliability

**Cons**

- ✉️ Excessive notifications
- 🚫 Spam push notifications
- ❓ News tab empty
- 🎛️ Buttons don't function
- 😵 Random needle movement
- ⚠️ Shows wrong notes
- 📱 Not compatible with newer iOS
- 👎 Terrible compared to others
- 💩 Hot garbage
- 😩 Annoying ads
- 📉 Slows down older iPhones
- 🐌 Slow and non-responsive
- 🔒 Screen auto-locks
- 🗑️ Deleting due to notices
- ❌ Buttons don't do anything
- 🤔 Not easy to figure out
- 🐛 Glitchy tracking
- 🤷 Buttons don't work
- 📱 Doesn't work in split screen
- 📉 Can't clear badges
- 😵 Confusing for beginners
- 😠 Snapped ukulele string
- 👎 Not great
- 🐛 Buggy, doesn't track well
- 👎 One of the worst

**Commonly reported bugs**

- Sends spam (marketing) push notifications without consent
- News tab is empty
- Too many notifications
- Needle moves randomly
- Shows wrong notes
- Not updated for several years, incompatible with newer iOS
- Snapped ukulele string
- Tuner vanishes from iPhone
- App is totally unresponsive on new iPad with iOS 11
- Screen goes into auto lock even when actively using the tuner
- Does not track strings well
- Function buttons do not seem to do anything
- Doesn't work in split screen
- App is not responsive
- Tuner is off, registers tuning fork incorrectly

**Most requested features**

- Bring back other Boss products as apps
- Add strobe mode
- Ability to change tuning fork note
- Move notifications icon to settings
- Option to disable ads
- Update for newer iOS versions
- Smoother LED motion
- Make more pedals available for guitar/iPhone connection
- Fix screen auto-lock issue
- Add dark mode

## Recent user reviews (10 of 132)

All indexed reviews: https://appshunter.io/ios/app/boss-tuner/id1113473319/reviews.md

### 1/5 — To many Adds

*2026-05-23, version 1.1.0*

So many ads that when you go to cycle and close them it crashed the app. You have to open it multiple times just to cycle through them all.

### 5/5 — Perfect!

*2026-01-29, version 1.1.0*

Works exactly as it should. Also a bonus that it covers alternate tunings as well!

### 4/5 — 惜しい

*2026-01-26*

アキュピッチ機能を是非サポートして下さい。

### 1/5 — Sends spam (marketing) push notifications without consent

*2026-01-15, version 1.1.0*

Spammer

### 4/5 — Where is Apple Watch version?

*2026-01-12*

It will be nice to have on Apple Watch version

**Developer response:** Appreciate the feedback!

### 5/5 — THANK YOUUUUU

*2025-11-15, version 1.1.0*

I've been looking for a tuner app that is just a tuner, nothing else, and doesn't have stupid constant ads that make it forever just to tune your guitar when you don't have your tuner with you. 
FOUND IT!! This app is perfect and exactly what I've been looking for. THANK YOU SO MUCH.

### 3/5 — Great tuner, annoying notifications

*2025-10-18, version 1.1.0*

I don’t give a bit, I just wanna tune, already own loads of stuff from you as a company

### 3/5 — Boss news tap

*2025-07-31, version 1.1.0*

Why does nothing ever appear on the news tab?

### 2/5 — Why so many notifications?

*2025-05-19, version 1.1.0*

It's a Tuner. The app in itself works well, but why so many notifications (52 notifications in the past three months). I don't need 52 notifications in a 3 month period for a tuner. I used to tune my instruments with a number of physical tuning forks I had. They worked fine and didn't send me notifications. It's a Tuner. Why so many notifications?

### 5/5 — Easily the best

*2025-05-05, version 1.1.0*

I’ve tried countless amounts of tuning apps, possibly them all. I’d recommend this always over any of the others. There’s not one that I’ve found that matches this. It does so much more than your standard tuning and hey, it’s boss.

## Frequently asked questions about BOSS Tuner

### What does the BOSS Tuner app do?

The BOSS Tuner app provides world-renowned chromatic tuning technology for iOS devices. It uses your device's microphone to help you tune a variety of instruments, including guitars, basses, violins, cellos, and brass instruments. The app aims to replicate the intuitive display and trusted accuracy of popular pedal tuners.

### What instruments can I tune with this app?

This app is designed to tune a wide range of instruments. This includes common string instruments like guitar and bass, as well as orchestral instruments such as violin and cello. It also supports tuning for brass instruments and others, offering broad utility for musicians.

### Is the BOSS Tuner app free to download and use?

Yes, the BOSS Tuner app is available as a free download on iOS devices. The core tuning functionality and features are provided without any cost to the user. There are no in-app purchases or ads mentioned for this application.

### What are the key features of the BOSS Tuner app?

Key features include hands-free chromatic tuning for various instruments, an audible reference pitch function for tuning by ear, and support for horizontal screen orientation to enlarge the meter view. It also boasts a tuning range from A#0 to G8 with an accuracy of +/- 1 cent, and a newsfeed for the latest BOSS information.

### What is the accuracy and tuning range of the app?

The app offers a tuning accuracy of +/- 1 cent, ensuring precise tuning for your instruments. The tuning range spans from A#0 (29.14 Hz) to G8 (6,271.93 Hz), covering a broad spectrum of pitches suitable for most musical instruments.

## Version history (last 2 releases)

### 1.1.0 — 2017-10-24

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

- It corresponds to the latest OS (iOS 11).
- Improved sensitivity adjustment.
- Added skin of TU-3W. You can also select existing skin (TU-3).
- Added the function to switch the status of Auto-Lock on the main screen.
- Added push notification function.

### 1.0.0 — 2016-06-16

No release notes.

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All apps by Roland Corporation: https://appshunter.io/developer/387333694

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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 2026-08-24.*