# Zen Tuner

> Minimalist chromatic tuner for all instruments with a clean interface. (iPhone/iPad app by Jean-Pierre Simard.)

- Source: https://appshunter.io/ios/app/zen-tuner/id1550640624 (this page in markdown: same URL + `.md`)
- Developer: [Jean-Pierre Simard](https://appshunter.io/developer/1515067065)
- Category: Music, Utilities, Music
- Price: Free
- Rating: 4.73/5 from 45 App Store ratings · 34 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: English
- Released: 2021-02-15
- Data updated: 2026-06-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zen-tuner/id1550640624/reviews.md

## What is Zen Tuner?

A minimal chromatic tuner. Works well with any instrument, whether it's woodwinds, brass, strings or voice.

Features:

* Beautiful, clean and simple interface
* Large current note representation and a high marker that change from red to green when the note is in tune
* One-touch menu to apply a transposition to easily tune all instruments
* Tap the main note to adjust preference to prefer sharps or flats
* Works well on all screen sizes and orientations, from the smallest iPhone to the largest iPad

## Key features

- Minimalist chromatic tuner
- Supports all instruments
- Clean and simple interface
- Large note display
- Transposition feature
- Sharps or flats preference

## Recent user reviews (10 of 34)

All indexed reviews: https://appshunter.io/ios/app/zen-tuner/id1550640624/reviews.md

### 5/5 — No Ads👏

*2025-10-28, version 0.3.0*

Literally just a simple tuner with a few settings. Accurate, clean, easy, no fluff at all and NO ADS. 

Good job developers I want to shake your hand(s).

### 5/5 — One Of The Best!

*2025-08-04, version 0.3.0*

It’s free. It doesn’t collect data.  And most important it works as well as any tuner app out there. I’ve tried ‘em all and this is what I use daily at home it’s always there as a backup on gigs. 5 stars all day long.

### 4/5 — Freezes frequently

*2025-01-12, version 0.3.0*

I love this app and use it all the time but it ‘freezes’ frequently. The only remedy is to delete and re-install. Any help? J.

### 1/5 — It doesn’t work

*2025-01-09, version 0.3.0*

It doesn’t work

### 5/5 — This works

*2024-09-14, version 0.3.0*

This works.  Solid, basic, application -- "does what is says on the tin."  The default interface shows notation in concert pitch, but transposition is available if you play a transposed instrument (trumpet, clarinet, french horn, sax) -- a nice feature.

### 1/5 — Doesn't work on MacOs

*2024-08-08, version 0.3.0*

As above

### 5/5 — So simple

*2023-10-28, version 0.3.0*

It does exactly what you need, no more no less. And a note to the writer of an earlier review she was having trouble getting the app to work. In my case, it worked fine on the pad forever, but I had to upgrade my iPhone to get it to work there, the retro download that was offered did not work. I would have titled this post “perfect” but that was used.

### 1/5 — Free, but it doesn't do anything. No a single thing.

*2023-09-19, version 0.3.0*

Just that.

### 5/5 — Good tuner!

*2023-07-08, version 0.3.0*

It works!

### 5/5 — Absolutely perfect!

*2023-05-28, version 0.3.0*

Accurate, simple, free, add-less, and works exactly as expected! Helps me with my practice and doesn’t interrupt me! I couldn’t recommend an app more!

## Frequently asked questions about Zen Tuner

### What does this app do?

This app is a minimalist chromatic tuner. It helps you tune any instrument, including woodwinds, brass, strings, and even your voice, by providing a clear visual indicator of the note's pitch.

### What are the key features of this tuner?

It boasts a beautiful, clean, and simple interface with a large representation of the current note. A high marker changes from red to green when the note is in tune. It also offers a one-touch menu for transposition and allows you to prefer sharps or flats.

### Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free user experience.

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

The app is designed to work well with a wide variety of instruments, including woodwinds, brass, and strings. It can also be used for tuning vocals.

### What devices is this app compatible with?

This app is compatible with all screen sizes and orientations, meaning it works seamlessly on devices ranging from the smallest iPhones to the largest iPads.

## Version history (last 5 releases)

### 0.3.0 — 2022-12-20

* iOS 15 is now required.
* Fixed an issue where the tuner would not process audio when launched in some conditions, such as when using Siri to launch the app.
* The UI now dims when audio session is starting up to make it easier to know when when the tuner starts capturing audio.

### 0.2.2 — 2022-04-11

Fixed an issue where the tuner would become unresponsive after switching to other apps.

### 0.2.1 — 2022-02-23

The app no longer dims the display after a period of inactivity.

### 0.1.10 — 2021-03-02

* Fixed a bug in tuning algorithm that would fail to accurately recognize a sharp B or a flat C.
* Fixed visual glitches when changing notes.

### 0.1.9 — 2021-02-17

* The current note and pitch marker now change to green when the note is in tune.
* Made it easier to tap the transposition menu.

## Apps similar to Zen Tuner

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Guitar Tuner＋](https://appshunter.io/ios/app/guitar-tuner/id1553432239) | 4.7 (1,621) | Free | Music |
| [Tuner-Guitar&Ukulele&Bass](https://appshunter.io/ios/app/tuner-guitar-and-ukulele-and-bass/id1538323124) | 4.8 (118) | Free | Music |
| [Banjo Tuner Rhythm](https://appshunter.io/ios/app/banjo-tuner-rhythm/id1672259261) | — | Free | Music |
| [Saxophone Tuner - Hz Generator](https://appshunter.io/ios/app/saxophone-tuner-hz-generator/id6744147615) | 5.0 (4) | Free | Music |
| [DropD](https://appshunter.io/ios/app/dropd/id1611313660) | 1.0 (1) | $1.99 | Music |

## Related topics

[datuner](https://appshunter.io/ios/topics/datuner)

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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 2026-06-09.*