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Professional-grade tools built with precision, privacy, and purpose. No bloat, no tracking, no compromises.

OCTAV

Sound Engineering Toolkit for iOS

A professional audio toolkit for iPhone and iPad: tone generation, chromatic and drum tuning, a calibrated SPL meter, a 31-band analyser with feedback detection, and a learning section for training your ear.

Tone Generator

Precise sine, square, and saw waveforms across the full audible range.

Chromatic Tuner

Real-time pitch detection for instruments and drum heads.

SPL Meter

Calibrated sound pressure level measurement with exposure warnings.

31-Band Analyser

Real-time frequency analysis with feedback detection for live sound.

Learn

Ear training exercises to sharpen your frequency recognition.

Rig Mode

Room analysis and feedback identification for live engineers.

iOS 18+iPhone & iPadNo Data CollectedNo TrackingOn-Device Processing

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