CompanionWaves

Companion Waves is a minimalist binaural audio app built for focused listening, relaxation, meditation, sleep routines, and exploring different stereo frequency differences through headphones or earphones.
Choose from 30 frequency presets ranging from 0.5 Hz to 100 Hz, organized across Delta, Theta, Alpha, Beta, and Gamma ranges. Each preset generates separate left and right tones to create the intended stereo frequency difference.
Companion Waves includes presets such as Slow-Wave Sleep, Deep Sleep, Meditate, Calm, Focus, Sustained Focus, Gamma Entry, 40 Hz Gamma, and more.
Key features include:
30 frequency presets from 0.5–100 Hz
Organized into Delta, Theta, Alpha, Beta, and Gamma ranges
True stereo left/right tone generation
Manual frequency selection with your last choice remembered
Background audio playback
Large, comfortable Play/Pause controls
Automatic pause when connected headphones, earbuds, or external audio devices disconnect
Built-in 30, 60, and 120 BPM metronome
Adjustable app volume
Dark, frequency-responsive visual themes
Startup headphone reminder
No accounts, ads, analytics, or tracking
No automatic time-based frequency switching
For the intended stereo experience, use headphones or earphones.
Companion Waves is designed as an audio and frequency-exploration tool. Preset names describe intended listening contexts and do not guarantee specific physiological, psychological, medical, cognitive, or sleep effects. Higher-frequency stereo-difference presets are provided for experimentation and exploration.
Choose a frequency, put on your headphones, press Play, and let Companion Waves provide a simple environment for your listening session.