Delta, Theta, Alpha, Beta, Gamma: A Field Guide to Brainwave Bands
The five brainwave bands behind every preset — what each one is associated with, and which tone in the app matches it.
Brainwave sound, generated live
Tune your mind with sound.
Binaural beats, isochronic pulses, chakra frequencies, morphing journeys and harmonic drones — built in real time on your phone for sleep, focus, calm and energy.
Free download · Binaural presets free forever · No ads, no account, works offline
Inside the app
Six ways to listen
Each section opens into its own presets. Tap one to play, tap again to stop — every tone loops seamlessly with no clicks or gaps.
Free forever
Binaural presets
Sleep, Relaxation, Focus, Energy, Insight and Gateway. A slightly different tone in each ear creates a beat your brain follows. Headphones on.
Pro
Isochronic
One tone pulsed on and off at a brainwave rate. No headphones needed — it works through a speaker.
Pro
Chakra
Seven energy-center frequencies, Root at 396 Hz through Crown at 963 Hz, using the classic solfeggio scale.
Pro
Morphing
A beat that glides from one state to another over 10, 20 or 30 minutes — Wind Down, Deep Relax, Focus In, Wake Up.
Pro
Harmonic stacks
Layered chords and drones built on musical ratios: Grounding, Open Fifth, Om, Warm Triad, Shimmer, Deep Drone.
Pro
Manual + Tuning Fork
Set each ear anywhere from 0 to 10,000 Hz, switch to a struck tuning-fork tone, and save three custom presets of your own.
Try before you download
Hear it right now
Five-second samples from every section, synthesized live in your browser. Put your headphones on for the binaural and morphing tones.
Now playing
Pick a tone
Every sound is synthesized live in your browser, the same way the app builds it on your phone.
0.0s5.0s
That was 5 seconds.The app plays it for as long as you like — with the screen off.
Get the app
Headphones on for binaural and morphing tones.
Screens
Calm, dark, one screen
Built for late-night use. Every section folds into a dropdown so the screen stays uncluttered.
Simple pricing
Try everything. Keep what you love.
Free forever
All six binaural presets, unlimited, no strings. No ads and no account — ever.
24-hour full access
Every section and feature is unlocked for your first day, starting when you install.
Pro · $2.99 once
Keep Isochronic, Chakra, Morphing, Harmonic Stacks, the manual sliders and tuning fork. One payment, no subscription.
From the blog
Learn the science
Science
Basics
Binaural Beats vs. Isochronic Tones: Which Should You Use?
Both pulse at brainwave rates. One needs headphones and lives in your head; the other is a real pulse you can play on a speaker. Here is how to choose.
Basics
What Are Binaural Beats? A Plain-English Guide
Two slightly different tones, one in each ear, and a beat that exists only inside your head. Here is how binaural beats work and how to use them.
Ready for the full session?
Everything is unlocked for your first 24 hours. Binaural presets stay free forever — keep every other section with a one-time $2.99 Pro unlock. No subscription, no ads, no account.