iOS App
Test your hearing range, explore frequencies, and challenge your ears with a friend.
Features
Slide through the full human hearing range — 20 Hz to 20,000 Hz — and hear every tone with pure sine-wave accuracy.
Sweep from 2 kHz to 20 kHz and tap the moment silence hits. Find your personal hearing cutoff and see how it compares by age.
One person listens with eyes closed, another secretly mutes the tone. Catch the silences — or don't. A two-player hearing game built right in.
Every hearing test is saved locally on your device. Track changes over time and see which ear performs better.
Enjoy the full experience without interruptions. Remove ads with a one-time purchase — no subscription, no tricks.
All test results stay on your device. No account required, no data sent to servers.
🎭 Saboteur Mode
Phone flat on the table. Tester closes their eyes. The Saboteur holds the top panel to secretly mute the tone — any time, any duration. Tap when you hear silence. The sine wave tells the whole story.