An honest comparison
Particle & Endel
Adaptive soundscapes for focus, relaxation, and sleep.
Endel makes soundscapes that adapt to you — the time of day, your location, even your heart rate. It is one of the most thoughtful sound products ever built. If what you need is sound for every part of your life, Endel is excellent. This page exists to help you decide whether you need Endel, Particle, or both.
What Endel does brilliantly
Sound that adapts to your life
Endel’s patented technology personalizes its soundscapes in real time, using inputs like time of day, weather, and heart rate. The result is audio that meets you where you are — no playlist curation required.
Everywhere you are
iOS, Android, macOS, the web, Apple Watch, even your TV. Endel covers focus, relaxation, sleep, and movement — it is built for the whole day, not just the desk.
Artist collaborations
Endel works with real musicians and weaves their material into functional sound. If you care about sound as art, that matters.
One job, done deeply
Endel does sound. Only sound. A decade of craft has gone into that single surface, and it shows.
Where Particle is different
Endel surrounds your life with sound. Particle is a room for your work — and sound is one layer of that room, not the room itself.
Particle’s soundscapes are generative within published constraints: nothing above 1,200 Hz on melodic content, no white noise, patterns that are mostly silence. They don’t read your heart rate. They are deliberately quieter than anything Endel makes, because they compete with silence, not with your playlist. If silence is working for you, we’ll tell you to use silence.
Around the sound sits the actual work: a timer that counts up instead of down, a planner that maps your day to your energy, a record of every focused hour you collect. Endel plays while you work. Particle is where you work.
The honest decision
Choose Endel if
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You want sound for sleep, walks, and workouts — not only for work.
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You want audio that adapts to your body and surroundings in real time.
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You already have a system for your work, and sound is the only missing piece.
Choose Particle if
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You want one place where the work itself happens — plan, focus, reflect.
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You want sound as quiet atmosphere, not as the main act.
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You work keyboard-first, in a browser, and want to start free — no subscription required.
Questions
Can I use Endel and Particle together?
Yes. Plenty of people run sound from one product and work in another. Particle’s timer, planner, and reflection work with any sound source — including silence.
Is Particle’s sound adaptive like Endel’s?
No. Particle’s soundscapes are generative — slowly evolving, never looping — but they don’t read your heart rate or the weather. They follow published psychoacoustic constraints instead, designed to fade from awareness rather than respond to you.
Is Particle free?
The free tier is free forever, with no credit card required. Particle Radio — our streaming focus sound — is free for everyone, with no limits.
The best tool is the one
you stop noticing.
Try the quieter room.
Free forever. No credit card.