How ONDA compares
ONDA composes ambient music live on your device, so it never loops, needs nothing to stream and works offline. It runs in the browser without an install, makes no medical or brain claims, and is free during its preview. Here is how it differs from popular focus, relaxation and sleep sound apps, including where each of them may suit you better.
Try ONDA free →Free for 10 minutes · no sign-up · nothing to install
At a glance
- Endel: also generative, with automatic personalisation from signals like heart rate and weather.
- Brain.fm: functional music marketed with neuroscience research.
- Calm: a broad meditation and sleep library with guided sessions and narrated stories.
- Noisli: a mixer of recorded background sounds.
Questions
Note on sources
Details about other services are summarised from their own public descriptions as of October 2026 and may change; check each service for current features and pricing. ONDA is not affiliated with any of them.
Is ONDA free?
Yes, during the preview. You can listen for 10 minutes straight away with no sign-up, then create a free account with just an email address to keep listening.
Read
ONDA vs EndelLooking for an Endel alternative? ONDA also composes soundscapes live, runs in the browser with no download, works offline and is free during its preview..ONDA vs Brain.fmComparing Brain.fm and ONDA for focus music: how the music is made, claims, price and privacy.ONDA vs CalmWant sleep and relaxation music without guided meditations or a subscription? ONDA composes endless ambient soundscapes live, free during preview..ONDA vs NoisliNoisli mixes background sounds; ONDA composes ambient music live with optional rain, ocean and wind beds.
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