Byna: Binaural Beats & Sleep
Free Focus & Meditation Tones
Free · Designed for iPad. Not verified for macOS.
Fall asleep faster. Focus deeper. Meditate without the noise.
Byna plays two slightly different tones -- one in each ear -- and your brain does the rest. It's called binaural beats, and it's been studied since the 1970s. Your brainwaves naturally sync to the difference between the tones, gently guiding you toward the state you choose.
Completely free. No ads. No accounts. No data collection. Ever.
-- 7 SCIENCE-BACKED PRESETS --
Each preset is tuned to a specific brainwave band:
- Wind Down (Delta, 2 Hz) -- Ease into deep sleep
- Quick Recharge (Delta, 3 Hz) -- A restorative pause
- Open Mind (Theta, 5 Hz) -- Explore quiet awareness
- Still Mind (Theta, 6 Hz) -- Settle into meditation
- Quiet Focus (Alpha, 10 Hz) -- Calm, clear concentration
- Deep Work (Beta, 18 Hz) -- Sustained mental focus
- Peak Awareness (Gamma, 40 Hz) -- Heightened clarity
-- REAL-TIME AUDIO SYNTHESIS --
Byna generates pure tones in real time -- no pre-recorded loops, no compressed audio files. Each session creates fresh sine waves at precise frequencies, so what you hear is mathematically exact. Carrier frequencies are held in the 200-500 Hz range where binaural perception is strongest.
-- VISUAL ANIMATIONS --
4 animation modes -- Pulse, Morph, Glow, and Ripple -- sync to your session's beat frequency. Watch the visuals breathe at the same rhythm your brain is following, or close your eyes and just listen.
-- PINK & BROWN NOISE --
Layer soft pink or brown noise under your binaural tones to mask distracting sounds. Helpful in noisy environments or when the pure tones feel too exposed on their own.
-- THOUGHTFUL DESIGN --
- Sessions start with a gentle fade-in and gradual frequency progression
- Volume is capped at 70% for hearing safety
- Sleep presets skip the fade-out (because you're asleep)
- Works completely offline -- no internet needed
- Keep Screen On option for uninterrupted visual sessions
- Auto-fullscreen mode for immersive listening
-- WHY FREE? --
Most binaural beats apps charge $10-15/month for what is, at its core, two sine waves. The science is public domain. The math is simple. Byna exists to prove that a good binaural beats experience doesn't need a paywall.
No premium tier. No "unlock for $9.99/month." Just headphones and a calm mind.
-- HEADPHONES REQUIRED --
Binaural beats only work with headphones or earbuds. Each ear needs to hear a different frequency for the effect to occur. Any wired or wireless headphones will work.
Built with care. Free forever.
Removed unused in-app purchase framework for a cleaner, lighter app. Byna is and always will be 100% free.
Headphones required for binaural beats to work.
The developer, Felix Asencio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Felix Asencio
- Size
- 41.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Copyright
- © Felix Asencio