Tones 1 Hz–22 kHz, built-in tuner, sweeps and safety notes.
Tone Generator+ Freq produces precise audio tones from 1 Hz to 22 kHz. Sine, square, sawtooth, triangle, and noise for testing, calibration, and experiments.
Set frequency with the dial or type the exact Hz. Built-in instrument tuner reads pitch in cents. Layer up to four tones in the mixer. Presets include tinnitus mask, sleep, dog whistle, cat repel, brainwave beats, and solfeggio.
Sweep between two frequencies, or play mono, stereo, binaural, and isochronic channels. Start quiet — loud tones can damage hearing and speakers.
Clean, glitch-free output through the iPhone speaker or a connected output.
Ratings & Reviews
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Store screenshots now show the 1 Hz–22 kHz tone panel, the instrument tuner, and the in-app guide in 30 languages.
Version 1.0.26
The developer, Kyu-Hee Jang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
Kyu-Hee Jang
Size
72.3 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
iPhone Requires iOS 17.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
