Bilateral Stimulation Technology

Stay calm.
Stay sharp.
Keep working.

A subtle overlay that uses bilateral stimulation to reduce anxiety, sharpen focus, and regulate stress while maintaining your flow.

⬇ Download for Mac Read the Science
Live bilateral stimulation preview — watch the ball
30+
Randomized controlled
trials support BLS
528
Hz therapeutic
frequency embedded
4s
Breathing cycle guided
by heart rate response
0
Interruptions —
works while you work
Early Users

Built for the ones
who can't slow down.

"I trade during market open and my heart rate used to go insane. With Bilu running in the background, I feel genuinely calmer under pressure. My decisions are sharper because my nervous system isn't in panic mode anymore."

M
Marcus T.Day Trader

"I use it every day for deep work. My stress is noticeably lower and my focus is sharper. Bilu keeps the ADHD in check and the distractions at bay."

S
Sarah K.Senior Software Engineer

"The breathing guide has genuinely changed how I handle deadline anxiety. It's the only focus tool I've kept using past week one."

J
Jamie R.Freelance Writer
How It Works

Engineered to sustain
your relentless drive.

Most focus tools ask you to pause. Bilu works while you work — a barely-visible overlay running silently in the background, doing the heavy lifting your nervous system never gets a break from.

01

The overlay activates

A semi-transparent orb appears at the edge of your screen — subtle enough to ignore, present enough to work. It bounces left to right while you write, code, trade, or create.

02

Your peripheral vision does the work

You don't need to focus on it. The rhythmic left-right motion is processed by your peripheral visual system, triggering the same neurological pathways activated in clinical EMDR therapy.

03

Binaural audio locks in the effect

An optional 528Hz tone pans in sync with the ball — left ear, right ear, back and forth. This dual-channel bilateral effect deepens the calming response.

04

Heart rate guides the response

When stress spikes are detected, the orb shifts to a breathing-guide pulse — expanding and contracting to coach your nervous system back to baseline without stopping work.

0:00
Burnout Prevention

Your brain
needs a cooling
system.

Burnout isn't caused by working hard. It's caused by your nervous system never getting a chance to regulate — accumulating stress day after day until the system breaks down.

Bilu acts like a passive coolant running in the background. The bilateral stimulus continuously dampens amygdala reactivity, preventing the cortisol accumulation that leads to exhaustion, emotional depletion, and cognitive decline.

Think of it as the difference between a car that runs hot all day and one with a properly functioning cooling system. Same engine. Very different outcome over time.

Without Bilu
Cortisol accumulates throughout the day
Amygdala stays in heightened state
Decision fatigue sets in by afternoon
Chronic stress leads to burnout
With Bilu
Continuous amygdala regulation
Cortisol peaks stay lower throughout day
Sustained cognitive performance
Resilience builds over time
Heart Rate Integration

Your body tells it
when to intervene.

Connect a compatible Bluetooth heart rate monitor and Bilu becomes adaptive. When your BPM spikes above your personal baseline, the app responds — slowing the ball, shifting to amber and red, and guiding you through a breathing cycle until you're calm.

Compatible with Polar H10, Polar Verity Sense, and any standard Bluetooth LE heart rate monitor.

Apple Watch integration — coming soon.

Live Demo — Stress Response
State
Calm
Breathing Guide BREATHE IN
68 BPM
CALM
94BPM
ELEVATED
Stress LevelELEVATED
Breathing GuideBREATHE IN →
🍎   Apple Watch support — coming soon
Breathing Guide BREATHE IN
4s inhale 6s exhale
INACTIVE
In the app: right-click the menu bar icon → Calm Mode
Calm Mode

No watch?
No problem.

You don't need a heart rate monitor to access Bilu's breathing guide. Calm Mode lets you manually trigger the full stress-response system — the ball slows, the glow shifts, and the breathing pulse activates on demand.

Choose 2, 5, or 10 minutes. Bilu guides your nervous system through a regulated breathing cycle, then automatically returns to normal when the session ends.

🫁
4-6 breathing rhythm
Clinically shown to activate the parasympathetic nervous system and reduce cortisol in minutes.
🎨
Visual color shift
Ball glows shift from blue to amber — a visual anchor that keeps your peripheral attention grounded.
One click from the tray
Right-click the Bilu icon in your Mac menu bar. No interruption to your workflow.
🔒 Pro feature — available after license activation
Real Situations

The moment before
you react.

Most bad decisions don't happen because of bad judgment. They happen in the half-second your nervous system hijacks your thinking. Bilu is built for that exact moment — across every part of life where pressure clouds clarity.

📉
High-Stakes Trading

The chart drops. Your hand is already on the sell button.

A position moves against you fast. Your heart rate spikes, your thinking narrows, and suddenly you're not analyzing — you're reacting. Most regretted trades happen in this exact window, not because the thesis was wrong, but because the nervous system took over before the brain could finish the thought.

With heart rate response active, Bilu detects the spike and shifts into a breathing guide right as the panic starts — giving you a few extra seconds of regulation before you act. Not advice on what to trade. Just space to think clearly before you do.

Live In-Game Betting

It's the 89th minute. The odds just shifted. You're already typing in a number.

Live betting moves fast, and so does the emotional pull to chase a loss or double down on excitement. The decisions made in that adrenaline spike are rarely the ones people are proud of the next morning.

Calm Mode gives you a manual reset for exactly that moment — no watch required. A few minutes of bilateral pacing and a breathing guide can be the difference between a decision made on logic versus one made on adrenaline.

📚
Deadlines & School

The cursor is blinking. The deadline is in three hours. Your mind is everywhere except the page.

Deadline anxiety doesn't usually look like panic — it looks like avoidance. Refreshing tabs. Reorganizing your desk. Anything except starting. The pressure builds quietly until it's loud.

Bilu runs in the background the entire time you're working, applying continuous low-level regulation instead of waiting for a crisis point. Many users find it lowers the activation energy needed to just start.

🧠
ADHD & Racing Thoughts

Five tabs open. Three half-finished thoughts. None of them landing anywhere.

For many people with ADHD, the challenge isn't a lack of focus — it's too many competing signals at once. A steady, predictable, rhythmic input in the background can act as an anchor point for an otherwise scattered attention system.

Several early users with ADHD report that the consistent left-right motion gives their mind something stable to orient around, similar to how white noise or fidgeting helps some people focus. It's not a substitute for treatment, but it's a tool that fits how their brain already works.

💬
Interviews & Difficult Conversations

You know exactly what you want to say. Your voice isn't cooperating.

High-stakes conversations — job interviews, performance reviews, hard feedback — can trigger the same physiological stress response as physical danger, even though nothing dangerous is actually happening.

A short Calm Mode session before the call, or letting Bilu run during it if you're on a desktop, helps keep your nervous system out of threat mode so you can actually access the thoughts you prepared.

A note on this section: Bilu supports emotional regulation and stress reduction. It does not predict markets, improve odds, or guarantee any financial outcome — and it's not a substitute for professional treatment of ADHD, anxiety, or any clinical condition. What it offers is a steadier nervous system for whatever decision is actually yours to make.

Features

Everything you need.
Nothing you don't.

Transparent overlay

A semi-transparent orb that lives above all your windows, across every desktop and Space on your Mac.

🖱️

Mouse avoidance

The ball intelligently moves away from your cursor so it never blocks anything you're working on.

🎵

Binaural panning

A 528Hz tone pans in perfect sync with the ball — left ear to right ear, sub-mixed under your existing audio.

🌧️

Ambient soundscapes

Our custom 80 BPM bilateral ambient track layered beneath the binaural tone for deeper calm.

💓

Heart rate response

Connect a Bluetooth heart rate monitor and the app automatically responds to stress spikes in real time.

🫁

Breathing guide

At elevated stress the orb shifts into a breathing pulse — stays expanded until your heart rate fully stabilizes.

🌊

Calm Mode

No heart rate monitor? Manually trigger the breathing guide for 2, 5, or 10 minutes from your menu bar.

Always on, all spaces

Runs from the menu bar. Follows you across every desktop, fullscreen app, and Mission Control space.

🔋

Battery optimized

Runs at 30fps with hardware acceleration disabled. Designed to run all day without draining your battery.

Pricing

Simple, honest pricing.

Try it free. Upgrade anytime — cancel whenever you want, or go lifetime and never think about it again.

Free
$0
forever free
  • Bilateral overlay ball
  • Basic speed & opacity
  • Mouse avoidance
  • All workspaces support
  • Binaural audio
  • Ambient soundscapes
  • Heart rate response
  • Breathing guide
  • Calm Mode
  • Color themes
Download Free
⚠️ First-time setup required

macOS will say Bilu is "damaged" since it isn't notarized yet. Bilu will be notarized soon for user convience. Run this once in Terminal after installing:

xattr -cr /Applications/Bilu.app
Download

Your most focused day
starts right now.

Available for macOS 12 Monterey or later. Apple Silicon and Intel both supported.

⬇ Download for Mac Read the Science

Free 7-Day Trial — No Credit Card Required

⚠️ First-time setup required (one-time only)

Since Bilu isn't notarized by Apple yet, macOS will say the app is "damaged." It isn't — just run this in Terminal once, after dragging Bilu into Applications:

xattr -cr /Applications/Bilu.app