SmartSoundTry it out
SmartSoundThe future of focus.

Focus instantly with
science-backed soundscapes.

Personalized audio that adapts to your heart rate and cognitive load — engineered to dissolve distraction.

Start a session Read the science
Free to start · No credit card · Cancel anytime
01Popular products
[01] / Product
SmartSound Focus.
Beta-band entrainment with a brown-noise floor. Adapts to your HRV in real time — tuned for 90 minutes of uninterrupted deep work.
Start a focus session
[02] / Product
SmartSound Recover.
Theta-band field over ocean noise. Down-regulates the nervous system after high cognitive or physical load.
Begin recovery
02How it works

A closed loop between sound and state.

01 / 03

Tell us your goal.

Focus, recover, sleep, energize or flow. Pick a mode and a duration. The engine assembles a protocol — carrier tones, noise bed, modulation depth — tuned to that target state.

02 / 03

We listen back.

Optional heart-rate input (Bluetooth chest strap or watch) closes the loop. The engine watches HRV in real time and nudges entrainment frequency to keep your nervous system in the target window.

03 / 03

You stay in the zone.

Every session logs entry latency, drift events and time-in-state. Over weeks the protocol learns what works for you, specifically — not for the population average.

03The science

Hear it before you read about it.

[ Deep sleep · 3 Hz delta · rain bed ]
A 30-second sample from the Deep Sleep protocol.

Delta-band binaural beats (3 Hz) layered under a low-passed rain field — the same engine that runs the Sleep mode in the app.

Deep sleep sample
30 seconds · headphones recommended
Neuroscience LettersNature · SleepFrontiers in NeuroscienceStanford SNACCell Reports
Protocols informed by peer-reviewed research · full citations on the Science page
04Pricing

Free to start. Honest to upgrade.

Starter
FREE forever
  • · 2 protocols (Focus, Flow)
  • · 10-min session cap
  • · 1 session per day
Get started
Pro
$9.99 / month
  • · All 6 neuro-acoustic protocols
  • · 8 sessions per day
  • · NASA-TLX workload tracking
  • · Vitals dashboard
Get Pro
Studio
$19.99 / month
  • · Everything in Pro
  • · Unlimited sessions
  • · Live Bluetooth HR adaptation
  • · Research-grade export
Get Studio
Have a code? Enter it at checkout — discounts apply automatically.
05Questions

Things people actually ask.

Binaural protocols need stereo headphones to work correctly. Isochronic and noise-based protocols work over any speaker. The app picks the right protocol based on the device it detects.