HertzZen: Sleep Sounds & Noise

Langazo TI

Contains ads

About this app

Fall asleep faster, focus deeper and relax anywhere. HertzZen is a sound machine that generates rain, white noise, nature sounds and binaural beats in real time — no downloads, no looping tracks, works 100% offline.

Unlike apps that replay the same recording, HertzZen synthesizes every sound live on your device. The rain never repeats. The fire never loops. The soundscape stays alive for as long as you listen — all in an app of just a few megabytes.

🎛️ A REAL SOUND MIXER
Blend up to 39 sound channels with studio-style faders and create your perfect atmosphere:
• Nature: rain, ocean waves, river, wind, thunder, fire, birds, crickets, cicadas, frogs, wolves
• Ambience: train, car ride, ticking clock, heartbeat, whispers, cat purr
• Noise colors: white, pink and brown noise for masking and concentration
• Instruments: singing bowls, wind chimes, bamboo, marimba, flute, koto, guzheng, erhu, shamanic drum, deep drones and soft pads that follow a gentle harmony engine

🧠 BRAINWAVE & SOLFEGGIO TONES
A dedicated binaural beat generator with Delta, Theta, Alpha, Beta and Gamma bands, plus all 11 Solfeggio carrier frequencies (174–963 Hz). Use it with headphones alongside any mix for sleep, meditation or deep work sessions.

🌙 MADE FOR BEDTIME
• Sleep timer with gentle fade-out (1 minute to 12 hours)
• Lock screen and Bluetooth headset controls
• Keeps playing with the screen off, battery-friendly
• Breathing guide with classic patterns (4-7-8, box breathing and more)

🎚️ MASTER FX
Shape the whole mix like a producer: ambience reverb (room to cave), warm low-pass filter, stereo panning per channel and Drift mode, which slowly varies your sounds so the mix feels alive.

💾 PRESETS & SHARING
• 16 hand-crafted scenes ready to play: Deep Sleep, Rainy Night, Zen Garden, Cozy Fireplace and more
• Save your own mixes and bring them back with one tap
• Share any mix as a short code or link — friends can hear exactly what you hear

📊 EXTRAS
• Real-time sound visualizer: oscilloscope, spectrum, radar and particles
• Listening stats and daily streak
• Light and dark themes
• Available in 14 languages

WHY HERTZZEN IS DIFFERENT
✓ 100% procedural audio — infinite, never-looping sound
✓ Fully offline — perfect for flights, trips and poor connections
✓ Tiny download, light on battery and memory
✓ No account needed

Put on your headphones, press play and let HertzZen carry you — to sleep, to focus, or simply to peace.

Note: HertzZen is a relaxation and wellness app. It is not a medical device and does not diagnose or treat any condition.

What’s new

NEW SOUNDS
• Monk Chant — fully synthesized voices that tune themselves to your mix
• Cave Drip — echoing droplets deep underground
• Bamboo Fountain — a Japanese shishi-odoshi garden
• New preset: 🎍 Japanese Garden

IMPROVED
• Richer fire crackles, rain on puddles, river gurgles, pebbles on the beach
• Café voices now murmur like real conversations
• Clock tick with a wooden body

FIXES
• Playback no longer resumes on its own after calls
• New option to block Bluetooth auto-play