# PiaTune - Piano Tuner — Professional piano tuning

> Professional piano tuning application for musicians and technicians. (iPhone/iPad app by HAKKI BAYKA.)

- Source: https://appshunter.io/ios/app/piatune-piano-tuner/id1441771210 (this page in markdown: same URL + `.md`)
- Developer: [HAKKI BAYKA](https://appshunter.io/developer/1441771209)
- Category: Music
- Price: Free with in-app purchases
- Rating: 4.40/5 from 11 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 49 MB
- Languages: American English
- Released: 2018-11-10
- Data updated: 2026-11-02
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/piatune-piano-tuner/id1441771210/reviews.md

## What is PiaTune?

PiaTune is a professional-grade piano tuning app designed for professional piano tuners and tuning enthusiasts.
PiaTune tunes the piano like an aural tuner would tune.

PiaTune comes in three versions:
Free, Home and Pro (formerly Paid).

Free version is for evaluation and has all features of the Pro version up to first 500 note changes, after which features are locked.

Home version has limited features and is aimed for piano enthusiasts. 
Upgrading to Home version price is US$ 19.99.

Pro version has premium features and is aimed for professional tuners. 
Pro version price is:
US$ 99.99 for upgrading from Free version 
or 
US$ 79.99 for upgrading from Home version.

See version comparison below for details.

Home Version:

Unlimited Notes
Inharmonicity Curve
Unequal Temperaments
Create New Temperament
Minimal Tuner display only
Auto Stretch 

Pro Version:

Unlimited Notes
Inharmonicity Curve
Unequal Temperaments
Create New Temperament
Indicator, Spinner, Horizontal, Vertical, Horizontal Phase and Minimal Tuner displays
Set Indicator Response
Independent Bass/Mid/Treble stretch selection
Magic Wand (stretch assistant)
File Save & Load
Over Pull (pitch raise)
Inharmonicity Measurement in Tuner Screen
Overlay Inharmonicity Graph
Tuning Curve
Temperament Beats Chart
Starting Pitch Curve
Custom Offsets
Check Pitch
Measure Beats
Check Note
Tone Generator
iCloud Drive Support
Advanced Start Page

PiaTune is your simple, fast, reliable, precise and versatile tool to assist you in your tunings.

SIMPLE
Using PiaTune is simple. Just select piano size, measure or sample inharmonicity, set tuning parameters and start tuning.

FAST
PiaTune measures inharmonicity of all 76 notes in just a few minutes. Or you can sample a few notes and fill in the rest automatically in just a few seconds.
Built-in generic files let you start an “out of the box” tuning right away.
Measure starting pitch, smooth, trend data and transfer to use for over pull. You can also use on the fly over pull starting pitch measurements.

RELIABLE
Be it a spinet, console with poor scale design or a concert grand, PiaTune always calculates an optimum tuning curve. You can set stretch options for bass, middle and treble while observing the best fit tuning curve.

PRECISE
PiaTune is precise to +/- 0.01 cents.

VERSATILE
Besides tuning functionality, PiaTune also offers screens that help with Voicing and Measuring Beats.

For more information visit https://piatune.com

## Key features

- Professional-grade piano tuning
- Aural tuner simulation
- Multiple versions (Free, Home, Pro)
- Inharmonicity measurement
- Customizable temperament options
- Tone generator
- iCloud Drive support

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to Pro Version | $99.99 | one-time |
| Upgrade to Home Version | $19.99 | one-time |
| Upgrade to Pro Version | $79.99 | one-time |


## Is PiaTune safe?

Not enough ratings yet to assess PiaTune.

## Is PiaTune legit?

PiaTune - Piano Tuner appears to be a legitimate app. The AppsHunter Legitimacy Score for PiaTune is 83 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/piatune-piano-tuner/id1441771210/reviews.md

### 3/5 — WARNING: very easy to run out of trial notes on badly out of tune pianos, due to confusing/bad UI

*2025-09-21*

This seems like a pretty featureful and effective app. Unfortunately I never got my piano through even a complete first pass tuning before it disabled due to the trial note limitation—500 notes would seem totally adequate except due to it constantly changing notes from auto-detection, I blew through 300 notes in ~2 octaves of tuning alone (upper registers are extra flaky)….

I don’t know if the instructions are badly written or I’m dumb, but even setting to “manual” pitch changing did not stop it from jumping to adjacent pitches (most strings in this piano were over 50 cents off, so it was constantly swapping pitches). In the end, I never completed a single full pass before the app disabled itself….

Note that it’s possible you can avoid eating up your trial notes by going into “Pitch Check” mode first *before* beginning a tuning session, so that you can get every string within 50c before fine tuning/measuring inharmonicity/etc—I only discovered this by wandering through the help screens later on (but annoying each one is only on its related screen, and the “tutorial” is extremely brief and confusing). But since even that function is disabled now, I’m not certain how/if it works or if it really avoids burning trial notes….

So sadly right now I have a still badly out-of-tune piano (90% of it within 20c maybe, after settling, but it sounds horrible) and a now-useless app… so I can’t verify whether the tuning it (will) produced is quality or not. It’d have been *extremely* helpful if there was a lock feature on the pitch change control (no auto-detection) OR if the startup screens emphasized not to jump straight into the tuning session and guided the user to a more useful/less frustrating pathway. Anyway, just a warning to others thinking about taking this app for a spin.

**Developer response:** Please contact through support e-mail. Regards,

### 5/5 — Erstklassig

*2025-03-01, version 8.0.3*

Um meinen Konzertflügel kümmert sich einer der besten Klavierstimmer, die es so gibt. Ich bin also wirklich verwöhnt. Meine Ohren wissen, wie eine gute Stimmung sein soll. Nun habe ich noch eine Replika eines historischen Hammerflügels. Der muß leider viel häufiger gestimmt werden. Den muß ich selbst stimmen. Mit PiaTune und Wiener Temperament erreiche ich ein sensationelles Ergebnis. Da guckt der Steinway traurig und fragt, wann der Profi mal wieder kommt. Den soll ich wegen der Stabilität nicht selbst stimmen. ;-)

### 5/5 — PiaTune - best app for the price!

*2023-08-24*

Most of the professional apps for piano tuning can do just fine on excellent pianos. The real challenges for apps are often the smaller pianos, and PiaTune outshines the rest due to both the measuring and graphing functions that allow the user to customize the tuning calculation. The developer has added specific enhancements that work well even with spinets. Combined with an effective pitch adjustment process has made getting the best sounding tunings out of so many different sized instruments during a regular tuning appointment.

### 5/5 — Worth it for me

*2021-11-14, version 4.6*

I’m not a professional piano tuner, but this app along with my limited piano tech knowledge from college is enough for me to tune my piano. It’s not perfect, but it’s close enough to not be annoying. 

I just did my second full tuning with this app, and I was delighted to see that my tuning profile from last year was still in the app. Saved a ton of time and effort.

**Developer response:** Thank you Kitreh.
Normally, PiaTune produces excellent results.
Could you please recheck your inharmonicity measurements and stretch settings.

### 4/5 — Update: Keeps crashing

*2020-08-05*

Update: the new version seems to be running smoothly. Thank you!

Original: When it works, it’s a great tool. Unfortunately my app keeps crashing and is no longer usable.

**Developer response:** Thank you for the feedback.
Please update your app to Version 3.0 to solve the crash issue.

### 1/5 — Unreliable - freezes

*2020-02-28*

App freezes randomly, sometimes quits on second note doing first run and locks out completely. Had to completely restart and clear other apps to leave enough free memory for stability. Tried on iPhone 6s & iPhone SE, iOS 12,10.
iPhone SE input detection with external input a little sensitive. 
Latest conundrum is C#III in the temperament setup. Can't detect the input frequency - just indicated "nan" Hz & so it won't capture any frequency data as it can't recognise the input. (Direct input from Rhodes electric piano)
Same behaviour, two different iOS devices.

**Developer response:** By design PiaTune will not advance to next note unless the progress bar is full and there is a check mark next to the note, indicating that inharmonicity measurement is complete.
The note must be played repeatedly in order to complete the inharmonicity measurement.
Please check video tutorials and user manual for reference on https://piatune.com
Best regards,
Please note that PiaTune is designed to work with acoustic pianos only.
Please contact at support@piatune.com for further assistance.

### 5/5 — Great Piano Tuning Apo. Super App zum Klavierstimmen

*2020-02-09, version 2.4*

Eine wunderbare App, mit der ich sehr zufriedenstellende Ergebnisse beim Stimmen meines Flügels erzielt habe. Viele Feinheiten sind vorhanden. Erstellung des Temperaments, Berechnung der Überstimmung (Overpull) wenn das Instrument deutlich zu tief und verstimmt war und ein Pitch Raise erforderlich ist uvm. 
Danke an die Entwickler. Thanks to the Developers.

### 5/5 — Congrats!

*2019-04-17, version 1.5*

Nice app👍🏻

### 5/5 — Perfect

*2018-11-10, version 1.1*

Perfect app

## Frequently asked questions about PiaTune

### What is PiaTune?

PiaTune is a professional-grade piano tuning app designed to assist both professional piano tuners and tuning enthusiasts. It aims to replicate the tuning process of an aural tuner.

### What are the different versions of PiaTune?

PiaTune offers three versions: Free for evaluation, Home for enthusiasts with limited features, and Pro for professionals with premium features. The Free version has limitations after 500 note changes.

### How much does PiaTune cost?

The Home version costs US$19.99, while upgrading to the Pro version costs US$99.99 from Free or US$79.99 from Home. The Free version is available for evaluation.

### What features are included in the Pro version of PiaTune?

The Pro version includes advanced features like multiple tuner displays, independent stretch selection, a stretch assistant, file save/load, over pull functionality, inharmonicity measurement, and iCloud Drive support.

### Is PiaTune precise?

Yes, PiaTune is precise to +/- 0.01 cents. It is designed to be a reliable and precise tool for tuning various types of pianos, from spinets to concert grands.

### Does PiaTune have ads?

No, PiaTune does not contain advertisements. The app is designed to provide an uninterrupted tuning experience for its users.

### What devices does PiaTune support?

PiaTune is supported on iPhone and iPod devices. It is designed for use on Apple's mobile platforms.

### How often is PiaTune updated?

The latest version of PiaTune is 9.5.2, last updated on October 31, 2026. This indicates a recent update, suggesting ongoing development and support for the application.

## Version history (last 5 releases)

### 9.5.2 — 2026-10-31

- Updates IH screen help

### 9.5.1 — 2026-10-26

- Bug fixes
- Updates tutorial

### 9.5 — 2026-10-21

- Introduces Home Version
- Renames Paid Version to Pro Version

### 9.4.1 — 2026-09-28

- Fixes tone playback bug

### 9.4 — 2026-09-22

- P12th stretch can be included/excluded optionally in Magic Wand through Settings > Tuning > Include P12th in Magic Wand.
- Improves Advanced IH measurements
- Improves indicator and spinner display movements
- Adds microphone meter to Tuner and IH/TC/SP screens
- Improves low frequency rumble handling
- Improves performance 
- Adds an optional flash screen feature to the IH screen, when inharmonicity measurement of a note is completed in Advanced IH mode. Flash duration can be set through Settings > Tuning > Flash Duration. Default is zero (no flash).

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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 2026-11-02.*