NoteCheck: Pitch & Key Check

Check your reference pitch before you go on stage. No ads, fully offline, no account needed. Tap a note or key and hear it instantly — built for musicians.

No ads. Fully offline. No account needed. Open the app and hear your reference pitch instantly — a lightweight tool built for the moments right before you go on stage.

■ Who it's for ・Vocalists who need a reference pitch before a set ・Guitarists/bassists tuning by ear or checking a phrase's pitch ・Keyboardists who want a quick reference tone ・Any musician who needs a quiet, instant pitch check backstage

■ How it works Tap a note button or the keyboard — the note plays immediately. Turn on Sustain mode and the note keeps ringing so you can check pitch hands-free.

■ Features ・No ads — zero interruptions ・Works offline — no network, no tracking ・No account — install and go ・2-octave keyboard + 12 note-name buttons ・Sustain mode — hold a note as a running reference pitch ・Large Now Playing display — read the note name at a glance backstage ・Dark mode only — built for dim backstage lighting

Not an instrument app. Not a tuner app. A dedicated tool for the 30 seconds before you go on.