Guitar Tuner H8 - A4 440Hz Pro

Guitar Tuner H8 - A4 440Hz Pro is a fast, accurate guitar tuner app for guitar, bass, ukulele, and other string instruments. It delivers a clear needle and strobe-style display, chromatic detection, and a stable A4 440Hz reference with adjustable calibration for any performance or practice setting. Ideal for beginners and pros who need a reliable, easy-to-use tuner on stage, in the studio, or at home. Key features - Chromatic tuner with high precision and instant pitch tracking - A4 440Hz reference with flexible calibration to match other instruments - Presets for popular tunings plus clear visual guidance and reference tones Keywords Guitar tuner app, 440Hz, chromatic tuner, instrument tuner, alternate tunings, pitch pipe, pro tuning