Test your speakers. Eject water. Measure your hearing range. Generate clean tones. All on-device, no accounts, no tracking.
Inside the app
Every tool is calibrated, distraction-free, and designed for repeat daily use.
Log-sweep 20 Hz β 20 kHz plus pink noise. Confirms full-range output and surfaces buzzes or rattles.
Sub-bass tone calibrated to push trapped water out of the speaker grille. 30 seconds, audible feedback.
Sweeps your audible spectrum and tells you the highest frequency you can still hear. Educational, not medical.
Sine, square, triangle, sawtooth β every waveform from 20 Hz to 20 kHz with continuous slider control.
Live 48-band FFT from your microphone with peak-hold. Tune a room or verify a speaker by sight.
Stereo, balance and phase-invert checks so you know your headphones are wired correctly.
Multi-hour pink noise with sweeping mid-tones. Now-Playing controls so you can stop from the lock screen.
Render any tone to WAV or M4A and share it directly. Useful for tests, recording calibration, or DAW alignment.
Private by default
PureWave runs entirely on your iPhone. Microphone audio is processed live and never recorded. Your test history stays on your device. RevenueCat handles subscription state β that's the only network call.