# insTuner Free - Chromatic Tuner

> Intuitive and accurate chromatic tuner for musical instruments. (iPhone/iPad app by Polybeat PTE. LTD..)

- Source: https://appshunter.io/ios/app/instuner-free-chromatic-tuner/id603425027 (this page in markdown: same URL + `.md`)
- Developer: [Polybeat PTE. LTD.](https://appshunter.io/developer/6787662088)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 4.40/5 from 5,029 App Store ratings · 596 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 44 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2013-02-20
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/instuner-free-chromatic-tuner/id603425027/reviews.md

## What is insTuner Free?

insTuner Free - The BEST, FREE, INTUITIVE Chromatic Tuner!

insTuner is a chromatic tuner that helps you tune instruments quickly and accurately.

With advanced DSP (Digital Signal Processing) algorithm, it is highly accurate (±1/1000 semitone or ±0.1 cent precision). insTuner Free is well-designed and easy to use. It features a unique "fixed" note wheel, which helps you to find the position of detected pitch easily. You can also use it as an electronic pitch pipe to tune by ear, matching the generated tones. With its large and clear display, you can tune your instrument without any difficulty: Just tune and play!

It is suitable for tuning acoustic or electric guitar and bass, ukulele, mandolin, banjo, bouzouki, bowed strings, woodwinds, brass, timpani and more. In fact, almost any instrument that sustains a tone can be tuned using insTuner Free. It supports Line-in Mode as well as Built-in Microphone Mode. Clip Microphone is supported too. 


=== FREE FEATURES === 
* Universal App, purchase once, available on all of your iOS devices: iPhone/iPhone5/iPod/iPad. 
* Precise to ±1/1000 semitone (±0.1 cent) 
* Tuning Range from C0 to B8, covering the range of almost all of musical instruments 
* Well-designed "Fixed" note wheel display 
* Tone generator
* Line-in and Built-in Microphone Modes
* Optimized for iPhone 6 and iPhone 6 Plus

=== ADVANCED FEATURES === 
* Supported both Landscape mode 
* Strobe Tuning Mode 
* Fine Tuning Mode with a highly responsive tuning meter for perfect tuning 
* Historical Curve Mode that shows tuning results over time
* FFT Tuning Mode for frequency analysis with Log, Linear or Note Display options 
* Real-time Spectrogram Mode with Log, Linear, Note and Median Frequency Display options for real-time audio analysis 
* Adjustable A4 (Concert A) calibration in 0.1 Hz increments 
* >30 historical temperaments 
* Customizable temperaments
* 12 notations 
* Needle damping
* Customizable transposition options for transposing instruments 
* Tone generator with four wave forms
* Customizable Input Channels
* Supported Apogee One
* Supported Inter-App Audio
* Supported Audio Bus



=== NOTICE === 
iPod Touch 3rd generation requires an external microphone.


===About EUMLab=== 
EUMLab's goal is to unleash your musical talent! With magic technology, EUMLab provides many products to help you create or learn music. 

More about us on www.eumlab.com 
Follow us on Twitter/Facebook @EUMLab 
Questions? Write to us: feedback@eumlab.com 
Watch videos on bit.ly/eumvideo

----------------------------------------------
 
Enjoy insTuner? Try Pro Metronome for FREE! http://bit.ly/prometronome

## Key features

- Chromatic tuning
- ±1/1000 semitone precision
- Fixed note wheel display
- Tone generator
- Line-in and microphone modes
- Supports many instruments

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Version | $3.99 | one-time |


## What do users think of insTuner Free?

Overall sentiment: positive

**Pros**

- 🎻 Accurate for tuning instruments
- 🆓 Free and no ads
- 💡 Chromatic tuning and tone generator
- 🎹 Works well for various instruments
- 👍 Easy to use and intuitive

**Cons**

- 🐛 Crashes or freezes on some devices
- 🔍 Struggles with low or high notes
- 🔧 Difficulty tuning certain instruments like kalimbas
- 💰 Paid version doesn't offer much over free version

**Commonly reported bugs**

- Bottom half of screen goes black on some devices
- Tuning dial not working properly
- Incorrect note detection in some cases

**Most requested features**

- Add metronome functionality
- Allow selecting specific notes to tune to
- Improve compatibility with iPad devices

## Recent user reviews (10 of 596)

All indexed reviews: https://appshunter.io/ios/app/instuner-free-chromatic-tuner/id603425027/reviews.md

### 5/5 — Tuning my lure

*2026-08-10, version 1.1*

I’m new to music and this app saved me! Easy to use and tune my lyre harp. Thank you. Highly recommend-
Super easy to use to tune and I love it.

### 5/5 — Very good

*2026-07-30, version 1.1*

Very good

### 5/5 — Best tuning app EVAAAAA!!!

*2026-07-10, version 1.1*

literally the only good tuning app on the entire freaking app store platform. love it!!!

### 5/5 — Things I wish and how it helps

*2026-06-30, version 1.1*

It is very helpful to tune an instrument, but I wish it would tell us like which way to two fine tuners and if it needs to be fine, tuned or peg tuned

### 1/5 — Do not pay for premium - DOES NOT WORK

*2026-06-22, version 1.1*

Just bought the premium version through app and now everytime I go to settings it crashes the app. Useless

### 4/5 — but why ?

*2026-06-13, version 1.1*

why does that damn voice generator appears a note named “do not remind me” and shut downs the app when i try to generate sound lower than F2# did i remind something wrong ?

### 5/5 — Great for my voice

*2026-06-03, version 1.1*

It is wonderful

### 3/5 — Was working than stopped

*2026-05-16, version 1.1*

Seemed to work and only used it a few times and was thinking of buying. I held off because not clear what the added features were. Rated 3 stars because it suddenly stopped working. It had access to my microphone and I could see green bar moving when I pluck a note but nothing happened. Maybe the free version is only for a trial period?

### 1/5 — Paid version not working

*2026-05-07*

I have purchased paid version , money is deducted but it’s not working

### 1/5 — did not hear

*2026-04-19, version 1.1*

ba d

## Frequently asked questions about insTuner Free

### What does insTuner Free do?

insTuner Free is a chromatic tuner designed to help you tune musical instruments quickly and accurately. It utilizes advanced DSP algorithms for high precision and offers an intuitive interface with a unique 'fixed' note wheel for easy pitch detection. It can also function as an electronic pitch pipe.

### What are the key features of insTuner Free?

Key features include ±1/1000 semitone precision, a wide tuning range from C0 to B8, a well-designed 'fixed' note wheel display, a tone generator, and support for both Line-in and Built-in Microphone Modes. It is optimized for various iOS devices.

### Is insTuner Free really free?

The app is available for free and offers a range of free features. However, it also includes advanced features that can be unlocked through in-app purchases, providing a freemium model.

### What instruments can I tune with insTuner Free?

This app is suitable for tuning a vast array of instruments, including acoustic or electric guitar and bass, ukulele, mandolin, banjo, bouzouki, bowed strings, woodwinds, brass, and timpani. Essentially, any instrument that sustains a tone can be tuned.

### What are the advanced features available?

Advanced features include Strobe Tuning Mode, Fine Tuning Mode, Historical Curve Mode, FFT Tuning Mode, Real-time Spectrogram Mode, adjustable A4 calibration, over 30 historical temperaments, customizable temperaments, and customizable transposition options for transposing instruments.

## Version history (last 3 releases)

### 1.1 — 2015-07-07

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

1. Fixed minor bugs
2. Added integration to other EUMLab's apps
3. Added simplified Chinese support.

### 1.0.1 — 2014-11-04

Hi folks, thanks for your support and we'll keep improving out insTuner! 

1. Fixed problems on iOS8
2. Optimized for iPhone 6 and iPhone 6 plus
3. Supported Inter-App Audio
4. Supported In App Purchase

### 1.0 — 2013-02-20

No release notes.

## Apps similar to insTuner Free

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Metronome Tuner \| Practice+](https://appshunter.io/ios/app/metronome-tuner-practice-plus/id858142974) | 4.4 (2,812) | Free | Music |
| [GuitarTuna: Tune & Play Guitar](https://appshunter.io/ios/app/guitartuna-tune-and-play-guitar/id527588389) | 4.8 (146,520) | Free | Music |
| [Tuner & Metronome -Soundcorset](https://appshunter.io/ios/app/tuner-and-metronome-soundcorset/id918055824) | 4.2 (997) | Free | Music |
| [Pitched Tuner - Tuning App](https://appshunter.io/ios/app/pitched-tuner-tuning-app/id1457541750) | 4.6 (5,144) | Free | Music |
| [Tuner Pro: Guitar Tuner & Tab](https://appshunter.io/ios/app/tuner-pro-guitar-tuner-and-tab/id1438248122) | 4.5 (45,065) | Free | Music |
| [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,949) | Free | Music |

## More apps by Polybeat PTE. LTD.

- [insTuner - Chromatic Tuner with Tone Generator](https://appshunter.io/ios/app/instuner-chromatic-tuner-with-tone-generator/id528923171)

All apps by Polybeat PTE. LTD.: https://appshunter.io/developer/6787662088

## Related topics

[cleartune chromatic tuner](https://appshunter.io/ios/topics/cleartune-chromatic-tuner) · [harp tuning](https://appshunter.io/ios/topics/harp-tuning) · [tuners for various instruments](https://appshunter.io/ios/topics/tuners-for-various-instruments) · [chromatic tuner instrument](https://appshunter.io/ios/topics/chromatic-tuner-instrument) · [c tuner](https://appshunter.io/ios/topics/c-tuner) · [lyre harp tuner](https://appshunter.io/ios/topics/lyre-harp-tuner) · [istuner](https://appshunter.io/ios/topics/istuner) · [dulcimer tuner simple](https://appshunter.io/ios/topics/dulcimer-tuner-simple) · [turner t1](https://appshunter.io/ios/topics/turner-t1) · [harp tuner melody](https://appshunter.io/ios/topics/harp-tuner-melody) · [ocarina tuner](https://appshunter.io/ios/topics/ocarina-tuner) · [kalimba tuner](https://appshunter.io/ios/topics/kalimba-tuner) · [the ukelele tuner banjo](https://appshunter.io/ios/topics/the-ukelele-tuner-banjo) · [free chromatic guitar tuner](https://appshunter.io/ios/topics/free-chromatic-guitar-tuner) · [kalimba tuner free](https://appshunter.io/ios/topics/kalimba-tuner-free) · [free pitch tuner](https://appshunter.io/ios/topics/free-pitch-tuner) · [instrument tuner](https://appshunter.io/ios/topics/instrument-tuner) · [string tuner instrument](https://appshunter.io/ios/topics/string-tuner-instrument) · [instrument tuner banjo](https://appshunter.io/ios/topics/instrument-tuner-banjo) · [tuning app flute](https://appshunter.io/ios/topics/tuning-app-flute)

---

*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 2026-08-27.*