Is your piano in tune?

PianoAudit listens while you play every key, maps your piano against its ideal tuning curve, and answers in plain language — from “in good tune” to “this needs a pitch correction.” On iPhone and Android.

Download on theApp Store Get it onGoogle Play

A complete piano diagnostic, free

No account, no ads, nothing leaves your device. Play the keys; PianoAudit does the rest.

Measure all 88 notes

Real-time pitch measurement built for pianos — inharmonicity and all. Watch each key land on the graph as you play it.

See the tuning curve

Your piano against its own ideal stretch curve, with the acceptable band drawn in — so you can see exactly where it drifted.

Get a straight answer

“In good tune — no tuning needed now.” “A pitch correction and a full tuning are recommended.” Plain language, backed by the numbers.

PianoAudit start screen with a recently measured piano
Simple from the first screen
Tuning report for a Yamaha grand: verdict, tuning curve graph, and plain-language summary
The verdict, the graph, the evidence
Before and after measurements of a real pitch correction, overlaid on one graph
Before and after, overlaid

Every screen above shows a real piano — a Yamaha grand measured before and after a pitch correction, straight from the app.

For piano technicians

PianoAudit Pro turns the measurement you'd take anyway into a customer deliverable: a one-page before/after tuning report with your business name on it, ready to send minutes after the appointment. Document the work, justify the pitch raise, build trust — whatever ETD you tune with.

Before/after customer tuning report PDF with business branding, stat tiles, and the measured curve
An actual PianoAudit Pro customer report — real measurements, before and after a pitch correction

Pricing

The free version is a complete diagnostic — measure a piano, understand it, share a report. Paid tiers add memory, comparison, and the professional workflow. Same app, same tiers on iPhone and Android.

Free

for every piano owner
$0
  • Measure all 88 notes
  • Tuning curve & live graph
  • Plain-language verdict
  • Assessment PDF export
  • One piano, two saved sessions

Plus

for owners & teachers
$14.99 one time
  • Everything in Free
  • Two pianos
  • Unlimited session history
  • Compare sessions on one graph

Pro

for piano technicians
$34.99/year or $149.99 lifetime
  • Everything in Plus
  • Unlimited pianos
  • Before/after customer reports (PDF)
  • Your business branding on reports