HertzZen synthesizes every sound live on your device — nothing is pre-recorded, nothing ever loops. Mix your own atmosphere to relax, focus and sleep.
Press START and a real synthesis engine wakes up. Every rain drop, chord and tone is computed on the fly, so your soundscape breathes and never repeats. Slide the 39 channels, shape the master filter, save the result as your own scenario — and share it with a code.
Rain, storms, koto, erhu, cat purr, bamboo bells, shamanic drum and more — volume, mute and pan per channel.
All 11 Solfeggio carriers from 174 to 963 Hz, layered with brainwave entrainment via the built-in stimulator.
Guided rhythms like 4-7-8 and box breathing, with optional vibration so you can keep your eyes closed.
Drift off and let the sound fade out on its own — the engine stops gently when the timer ends.
Save unlimited personal scenarios and share any mix with a short code your friends can import.
Track your listening minutes, weekly rhythm and daily streak — stored only on your device.
Keeps playing with the screen off, with full playback controls in the notification and lock screen.
Fully translated into English, Portuguese and Spanish — switch anytime in Settings.
A soundscape that fades out on its own as you drift away.
Non-repeating audio your brain can't tune out — or get distracted by.
Pair breathing rhythms with gentle tones for a deeper practice.
Wind down after a long, loud day with your own quiet place.
Free on Google Play. No sign-up, no microphone, no data collection — just sound, computed live for you.
