PitchLock is a real-time pitch correction effect for your voice, built as a native Audio Unit v3 (AUv3) plugin. Use it inside any AUv3 host — AUM, GarageBand, Cubasis, Loopy Pro and more — or open the app for an instant live preview with your microphone. FEATURES - Low-latency pitch detection and correction (YIN-based) - Key and scale snapping: Chromatic, Major, Minor, Harmonic Minor, Pentatonics, Blues - Key and Scale exposed as host parameters — automate or MIDI-map them - Retune speed from subtle to hard snap - Humanize: relaxes correction on held notes to keep vibrato natural - Formant tone control and dry/wet amount - Built-in tuner display showing detected note, target note, and cents offset - Adaptive UI that works from a compact AUM slot to full-screen iPad No account, no ads, no tracking. Audio is processed on-device and never recorded or stored.