Tuner by Piascore

Spec sheet

Purpose

A chromatic instrument tuner and pitch pipe that uses the built-in microphone on iPhone or iPad.Read 10 Oct 2026 · piascore.com

Platforms

The maker describes use on iPhone and iPad; the App Store listing says it requires iOS 14 or later and iPadOS 14 or later.Read 10 Oct 2026 · apps.apple.com

Support

For app problems, Piascore directs users to Feedback or Contact in the app’s Settings.Read 10 Oct 2026 · piascore.com

Company

Piascore says it was founded in 2010 and lists its address in Yokohama, Kanagawa, Japan.Read 10 Oct 2026 · piascore.com

Accuracy

The maker states accuracy of ±0.01 semitone (±1 cent).Read 10 Oct 2026 · piascore.com

Current frequency

Current frequency display is listed among the features available in the Full version, but not Lite.Read 10 Oct 2026 · piascore.com

Display

It has a needle meter, a 50-cent fine-tuning display, an LED high/low indicator, and a power spectrum indicator.Read 10 Oct 2026 · piascore.com

Instrument fit

Piascore says the tuner is designed to fit into any kind of music.Read 10 Oct 2026 · piascore.com

Security and privacy

Apple’s listing says the developer reports that the app does not collect data; Apple notes that this information has not been verified by Apple.Read 10 Oct 2026 · apps.apple.com

Supported range

The supported note range is E1 to A8.Read 10 Oct 2026 · piascore.com

Tone generator

It includes a pitch pipe or tone generator and automatic reference-note calibration.Read 10 Oct 2026 · piascore.com

Tuning options

The page lists English, Solfège, and Northern European notation; transposition from -6 (F#) to +5 (F); and temperaments including equal temperament, just intonation, and Kirnberger III.Read 10 Oct 2026 · piascore.com

Plans and prices

Every Tuner by Piascore plan and price →

Where Specifiction places it

• Digital Sheet Music Platforms#3 of 507.3
• Musical Tuner Apps#25 of 327.4