What is the best free ADHD focus app?

ChillSounds is a 100% free ADHD focus app with binaural beats, brown noise, and 852 Hz Solfeggio frequencies. Unlike Endel or Brain.fm, it requires no subscription, no account, and doesn't track you. It runs entirely in your browser and works offline.

Is ChillSounds really free?

Yes, ChillSounds is 100% free with no subscription, no account required, no ads, and no hidden fees. It runs entirely in your browser. The creator has ADHD and built it because they were tired of expensive focus apps.

Is ChillSounds a free alternative to Endel?

Yes! ChillSounds offers similar focus soundscapes with binaural beats and procedural noise generation, but it's completely free with no subscription required. It runs in your browser without needing an app download, and all audio is generated in real-time on your device.

Is ChillSounds a free alternative to Brain.fm?

Yes, ChillSounds is a free Brain.fm alternative. It provides binaural beats, brown noise, and focus sounds without the $50-100/year subscription. While Brain.fm has more sophisticated AI algorithms, ChillSounds is 'good enough' for most people - and it's free.

Do binaural beats actually work for ADHD?

Some studies show promise for binaural beats improving attention, though research specifically for ADHD is limited. Many users with ADHD report subjective benefits for focus and concentration. ChillSounds recommends trying it yourself to see if it helps - it's free, so there's no risk.

Does ChillSounds collect my data?

No. ChillSounds runs entirely in your browser. There's no tracking, no analytics, no cookies, and no server storing your data. The creator built it this way because they believe ADHD brains shouldn't be monetized.

Does 852 Hz help with ADHD?

852 Hz is a Solfeggio frequency that some users with ADHD report helps with focus and mental clarity. While scientific research on this specific frequency is limited, many in the ADHD community find it helpful as part of their focus routine. ChillSounds offers it for free so you can try it yourself.

What Hz frequency is best for ADHD focus?

Common frequencies used for ADHD focus include: 40 Hz gamma waves (associated with concentration), 10-14 Hz alpha waves (relaxed focus), 852 Hz Solfeggio (mental clarity), and 4-8 Hz theta waves (creative flow). ChillSounds offers all of these for free - try different ones to see what works for you.

Does brown noise help ADHD?

Many people with ADHD find brown noise helpful for focus. Brown noise has a deeper, more soothing quality than white noise, which can help mask distracting sounds and provide a consistent audio backdrop. ChillSounds offers free brown, pink, and white noise that can be layered with binaural beats.

Can I use ChillSounds offline?

Yes! ChillSounds is a Progressive Web App (PWA). Once you visit the site, it caches everything you need. You can add it to your home screen and use it without internet. All sounds are generated in real-time on your device - no streaming required.

Do I need headphones for binaural beats?

Yes, headphones are required for binaural beats to work properly. The technology works by playing slightly different frequencies in each ear, and your brain perceives the difference as a rhythmic pulse. Without headphones, this effect doesn't happen.

Are binaural beats safe for ADHD?

Binaural beats are generally considered safe for most people. However, people with epilepsy or seizure disorders should consult a doctor before use, as some frequencies may potentially trigger seizures in sensitive individuals. For most ADHD users, binaural beats are a safe, non-invasive focus tool.

What is 852 Hz frequency?

852 Hz is one of the ancient Solfeggio frequencies, traditionally associated with awakening intuition and returning to spiritual order. For ADHD focus, users report it helps with mental clarity and concentration. ChillSounds combines 852 Hz with binaural beats for enhanced focus.

Is ChillSounds available on mobile?

Yes! ChillSounds works on any device with a web browser - iPhone, Android, iPad, tablets, laptops, and desktops. You can add it to your home screen for an app-like experience. It's a Progressive Web App, so it works offline too.

What is the best background noise for ADHD studying?

For ADHD studying, many find brown noise or pink noise most effective, often combined with low-volume binaural beats. Brown noise is deeper and more soothing, while pink noise is balanced across frequencies. ChillSounds lets you layer these sounds and adjust volumes to find your perfect study mix - all for free.

Who built ChillSounds?

ChillSounds was built by one person with ADHD who was frustrated with expensive, subscription-based focus apps like Endel and Brain.fm. They built what they needed and made it free for everyone. No company, no venture capital, no growth hacking - just one person helping others with ADHD.

852 Hz Pure

Free on ChillSounds.io

Pure Solfeggio frequency for deep focus

Use headphones for best results

Tap to start:

852 Hz Pure

ADHD

Pure Solfeggio frequency for deep focus

Gamma 40Hz

40Hz binaural beats for cognitive boost

Deep Work

Intense focus with gamma waves

Light Focus

Gentle 18Hz beta for light tasks

Flow State

Relaxed 10Hz alpha for creativity

8D Odyssey

ADHD

Immersive spatial audio with stereo panning

How it works

Binaural Beats

Different frequencies in each ear create a rhythmic pulse your brain perceives, helping with focus.

Noise Layers

Layer brown, green, pink, or white noise on top of any mode using the buttons below.

8D Spatial Audio

Immersive panning creates a moving soundscape that keeps ADHD brains engaged.

852 Hz frequency: free online tone for focus and calm

852 Hz is one of the "solfeggio" frequencies. This mix plays a pure 852 Hz tone with no noise or music underneath. If you want a free frequency generator for focus or winding down, start here.

How to use it

Keep the volume low, just loud enough to notice. Give it 10 to 20 minutes. Headphones help but aren't required.

Who it helps

People who find a steady, bright tone helps them tune out distractions or settle a busy mind.

Common questions

What is 852 Hz good for?

Most people use 852 Hz as a calming, focusing background tone. Claims that it "awakens intuition" or heals the body aren't backed by solid research. Treat it as a pleasant sound that may help you settle, not as medicine.

Is 852 Hz a binaural beat?

No. 852 Hz is a single audible tone. Binaural beats use two slightly different tones, one in each ear. Some of our other mixes use binaural beats.

How long should I listen to 852 Hz?

As long as it feels good. Many people play it through a whole work session. There's no known benefit to a specific length.

Is this 852 Hz tone free?

Yes. It's completely free, with no account, no ads, and no tracking.

Honest About the Science

I have ADHD. I built ChillSounds because these sounds help me focus. But I believe in honesty, here's what the science actually says.

PubMed: Binaural Beats ADDitude Magazine

852 Hz Pure

Focus

852 Hz Pure

Gamma 40Hz

Deep Work

Light Focus

Flow State

8D Odyssey

Training

Sleep & Relax

How it works

Binaural Beats

Noise Layers

8D Spatial Audio

852 Hz frequency: free online tone for focus and calm

How to use it

Who it helps

Common questions

Honest About the Science

852 Hz Pure

Focus6 sounds

Focus

852 Hz Pure

Gamma 40Hz

Deep Work

Light Focus

Flow State

8D Odyssey

Training2 sounds

Training

Sleep & Relax6 sounds

Sleep & Relax

How it works

Binaural Beats

Noise Layers

8D Spatial Audio

852 Hz frequency: free online tone for focus and calm

How to use it

Who it helps

Common questions

Honest About the Science

Why I built this

What we know (and don't know)

Why it might still help you

My approach