Intrinsic: Binaural Wave Tones

Sleep, drift, settle, or sharpen. Intrinsic is a tone generator that spans the whole range — deep delta at one end for rest and recovery, gamma at the other for sharp attention, and every band in between. Pick a tone, put your headphones on, let it run. No account, no ads, no streaks to keep up with. It opens, it plays, and it gets out of the way. BINAURAL THROUGH HEADPHONES, ISOCHRONIC THROUGH SPEAKERS With headphones on, Intrinsic sends a slightly different pitch to each ear. The difference between the two is the frequency you're listening for — it isn't in either ear on its own. Take the headphones off and it switches to isochronic pulses, which carry the same rhythm through a single speaker. TWENTY-FIVE TONES Delta and epsilon for sleep and physical recovery. Theta for trance, meditation, and the edge of dreaming. Alpha for eyes-closed calm with the lights still on. SMR and beta for quiet, steady work. Gamma for alertness and sharp focus. Including the narrow bands most apps skip. THE TUNER The whole spectrum as one continuous drag, 0.1 to 100 Hz, instead of fixed steps. Slide between bands and hear the change as it happens. A Voice control sets the pitch the beat rides on — low is warmer, high is brighter — so you can find something comfortable to sit with for an hour rather than something you tolerate. Save keeps a setting to come back to. A SOUND BED, IF YOU WANT ONE Brown, pink, or resonant noise underneath the tone, at its own level. Or off entirely. A TIMER THAT FADES 15, 30, 60, 90 minutes, or off. The last minute fades down rather than cutting out, so the end of a session doesn't wake you the way silence does. IT KEEPS PLAYING Lock the screen, switch apps, answer a message. The tone keeps going, with pause and stop in your notifications. Play a podcast or a video over the top and neither one interrupts the other — Intrinsic runs underneath without touching what you're already listening to. A FIELD TO WATCH, OR NOT A quiet visual field responds to touch and otherwise stays still. No flashing, nothing demanding your eyes. Ignore it entirely and nothing is lost. WHAT IT DOESN'T DO - No account and no sign-in - No advertising of any kind - No streaks, badges, reminders, or notifications asking you to come back - No analytics, no tracking, no listening history - Collects no personal information at all Sound is generated on your device as you listen. Nothing about what you play leaves your phone. AN HONEST NOTE Intrinsic is an instrument, not a treatment. It is not a medical device and makes no health claims. What people report from tones like these varies widely, and the research is genuinely mixed — so the useful approach is to try a band, notice whether it does anything for you, and keep the ones that do. Start at a low volume and turn it up only if you need to. Loud is not better here, and headphone volume over long sessions is worth being careful with.