Ondasis – Sounds to relax

Ondasis is your oasis of sound, in your pocket. Pick what you need right now — sleep, focus, let the pressure go — and let the sound do the rest. Not sure? Say how you feel: Ondasis suggests three listens.

FIVE THEMES
• Frequencies: brainwaves (delta, theta, alpha, beta) and solfeggio frequencies from 111 to 963 Hz, alone or combined.
• Sleep: nap, falling asleep, full night, unwind.
• Focus: deep work, reading, creative flow, study.
• Nature: morning forest, rainy night, seaside, stream, mountain wind.
• Epic: seven original pieces — six wide, luminous soundscapes (pads, choir, strings, timpani) for joy and release, and a slow handpan session over a 999 Hz tone.

REAL INSTRUMENTS
Piano, harp, flute, cello, guitar, kalimba, handpan, electric piano, voice, bansuri, singing bowls: real recordings, retuned to the programme's frequency and played in slow, returning phrases, like a lullaby. Or just nature, or a pure tone.

YOUR WAY
• Headphones detected: binaural beats. Speaker: isochronic beats. Automatically.
• Mixer: beat, music, ambience, pink or brown noise, volume.
• Guided breathing: follow the circle (5-5 coherence, box, 4-7-8…), the sound breathes with you.
• Free-length timer with an end fade of up to 3 minutes, black-screen night mode, playback with the screen off.
• Gentle wake-up: the sound rises slowly at the time you choose.
• Variation: a steady motif to fall asleep, a freer one to meditate.
• Calm minutes: a discreet counter of your quiet time.
• Favourites: find your programmes in "My mixes", or with a long press on the app icon.
• Share a mix by link: friends listen for free.
• In English, French, Spanish, German and Portuguese.
• Everything offline, no account, no ads.

PREMIUM (one-time purchase, no subscription)
• The Lab: build your mix layer by layer — frequency, beat, up to eight instruments, ambiences, background noise, fine settings (tempo, register, density, per-layer timer).
• Your own recorded voice in your mixes (looped or every 5, 15, 30 seconds…).
• Save your mixes and find them in "My mixes".

Ondasis is a relaxation tool, not a treatment. Keep the volume moderate, never while driving. Not recommended for people with epilepsy without medical advice.