The studio
A real instrument, in your browser.
Multi-track timeline, live preview, per-layer mixing, WAV export, one-click AI generation, AI voice layers and a Solfeggio tone generator — free, no install, works offline.
KalmTide builds precision audio sessions that guide your brain toward sleep, deep focus, meditation or exploration — with honest science and no gimmicks.
Your first sign-in creates your account. Everything core works without one.
Four states of mind
Each session ramps your target brainwave band gradually — the way your nervous system actually settles — instead of dropping you in cold.
Descend from a waking rhythm into deep delta over the course of the session, then stay there all night.
Settle into theta — the drowsy, image-rich band experienced meditators know well.
Alpha and low-beta pacing for calm, sustained attention. Pairs well with a soft noise bed.
Deep-theta sessions for lucid dreaming and out-of-body practice — scaffolding for your own work.
How it works
Sessions are recipes, not recordings — a precise schedule of carrier tones, beat frequencies and nature sound, rendered click-free in real time.
Type “calm before a meeting, 10 minutes, soft rain” and let AI draft the session — or build every layer yourself in the studio timeline.
Binaural, monaural or isochronic tones ramp smoothly toward your target band, with rain, ocean, wind or crickets underneath.
Sessions sync both ways — draft in the studio and play in bed, or build on your phone and refine on the big screen. Playback keeps going with the screen locked, all night if you want.
“We'd rather you trust KalmTide because it's honest than buy it because it promised the impossible.”
The studio
Multi-track timeline, live preview, per-layer mixing, WAV export, one-click AI generation, AI voice layers and a Solfeggio tone generator — free, no install, works offline.
Affirmations
Record an affirmation in your own voice — or type it and let a natural AI voice read it. KalmTide repeats it gently over a slow tone bed, spoken clearly or mixed to the edge of hearing.
Record on your phone; KalmTide cleans the take automatically — levels it, trims the silence, softens the edges. Your recordings never leave your device.
Type the words, pick a warm or deep AI voice, and the finished session plays on your phone and in the studio alike — synced through your account.
Unlike a downloaded “subliminals” video, you know exactly what's in the audio — you wrote every word of it. Quiet mode is your words at the edge of hearing, never someone else's underneath.
Practice tools
The sound is scaffolding — these are the tools on Android that turn it into a practice.
Every session is logged automatically — streaks, minutes, notes with tags. Export it all as JSON any time; it's your data.
A full-screen orb that breathes with you — Calm, Box, 4-7-8 and Resonant patterns, over any playing session.
For lucid-dream and out-of-body practice: sleep, a gentle scheduled wake, then straight into a deep-theta session.
Spoken cues placed to the second, tones ducking gently beneath the voice — from your device's own voice engine or a natural cloud voice.
All nine traditional frequencies, rendered exactly on frequency — pure or gently pulsed — on your phone and in the studio. Framed honestly: tradition, not medicine.
Rain, ocean, wind, streams, crickets and fire — generated by the engine itself, identical on every platform, nothing to stream.
Pricing
The entrainment engine, every technique, every band — free forever. One small purchase unlocks the practice tools; one small subscription exists only for the things that cost us money every month.
The only subscription — and only because AI generation and sync have real ongoing costs. Nothing on-device ever moves behind it.
Purchases on Google Play at launch; prices shown in USD and set per country by Play. No ads at any tier, ever.
Android