PianoAudit - is it in tune?
Analyze any piano tuning
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Is your piano in tune? PianoAudit listens while you play each key, plots the result against the piano's ideal tuning curve, and tells you in plain language whether it needs tuning, from "in good tune" to "needs a pitch correction."
There is no account and no advertising, and the full diagnostic is free.
HOW IT WORKS
1. Set your phone on the piano and play each key.
2. Watch each note appear on the graph as you play.
3. Read the verdict, a recommendation with the numbers behind it.
A full measurement takes a few minutes. About 20 keys is enough for a confident verdict. Playing all 88 gives the most complete picture.
WHAT THE FREE VERSION INCLUDES
• Measurement of all 88 notes, with pitch detection designed for pianos
• The tuning curve: your piano plotted against its own ideal stretch curve, with the acceptable range drawn in so you can see whether a tuning is in range
• A plain answer, such as "In good tune. No tuning needed now." or "A pitch correction and a full tuning are recommended."
• A PDF assessment of your piano that you can share
• One piano with two saved measurement sessions
WHY IT MATTERS
Pianos drift out of tune slowly, and day to day you adapt and stop hearing it. Seasonal humidity swings pull the pitch up and down. A piano left too long can drop far enough that it needs extra work (a pitch raise) before it can hold standard pitch again. PianoAudit shows where your piano stands, so you know when to call your tuner and when you can wait.
FOR PIANO TECHNICIANS
PianoAudit Pro produces a report you can hand to the customer:
• Before and after tuning reports: a one-page PDF with your business name, overall pitch, and average deviation
• A record of the pitch raise, showing the customer what was done and why
• A measurement takes about 90 seconds. Play a quick chromatic scale, or leave it running while you check unisons
• Works alongside any electronic tuning device, or your ears
• Unlimited pianos and unlimited session history
Prospective clients can measure their piano with the free app and send you a screenshot, so you can quote the pitch correction before the appointment.
UPGRADES
• Plus (US$14.99 one-time purchase): up to two pianos, unlimited session history, and several sessions compared on one graph
• Pro (US$34.99 per year or US$149.99 lifetime): everything in Plus, unlimited pianos, and before and after customer reports with your business name
(The Pro annual subscription renews automatically unless cancelled at least 24 hours before the end of the period. Payment is charged to your Apple Account at confirmation of purchase. Manage or cancel anytime in your Apple Account settings.)
PRIVACY
Audio is analyzed as it comes in and immediately discarded. Only the measured numbers are kept, on your device. No account, no ads, and nothing leaves your phone.
From the creator of PianoMeter.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://pianoaudit.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Reports can now show an experimental measure of unison quality: a row of colored bars, one per key. Turn it on or off in Settings.
• Rough treble unisons on an otherwise clean piano are described as "mis-tuned unisons or false beats." (The app can't yet tell the two apart.)
• A piano that is in tune with itself but a few cents sharp or flat now says so and gives the equivalent pitch (A=441, for example).
• Cleaner report and PDF layout
• Improved note detection
• Minor bug fixes
The developer, Willey Piano, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Willey Piano LLC
- Size
- 4.3 MB
- Category
- Music
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- PianoAudit Pro subscription $34.99
- Plus to Pro upgrade $119.99
- PianoAudit Pro Lifetime $134.99
- PianoAudit Plus version $14.99
- Copyright
- © Willey Piano, LLC