Rest, recharge, reclaim your calm.

Binaural beats are an auditory phenomenon that occurs when you hear two slightly different frequencies in each ear. Your brain perceives a third frequency equal to the difference between the two. Research suggests this can help guide your brain into specific states like relaxation, focus, or sleep. Selena's AI-driven generator builds these binaural patterns in real-time, tuning the frequencies to your chosen goal for precise control.

For binaural beats to work, you need stereo headphones so each ear hears a different frequency. However, Selena also offers isochronic tones which work through speakers without headphones. The app will remind you when headphones are needed for the best experience.

Selena is designed for general wellness purposes and is safe for most users. However, it is not a medical device and should not replace professional medical advice. If you have epilepsy, seizure disorders, or other neurological conditions, please consult your doctor before using frequency-based audio. As a precaution, avoid driving or operating machinery while using the app.

We recommend starting with 15-30 minute sessions and adjusting based on your experience. For sleep, you can use longer sessions with our smart fade-out feature. For focus, 25-minute Pomodoro-style sessions work great. There's no strict limit, but listening to your body is always best.

Yes, you can cancel anytime. Subscriptions are managed through the App Store or Google Play, so you can cancel in your device's settings under Subscriptions. Your premium access continues until the end of your current billing period. We never make it hard to leave.

Yes! All core features work without an internet connection. Binaural beats and frequencies are generated in real-time on your device, and ambient sounds are bundled with the app. You can use Selena anywhere, anytime, even on airplane mode.

Binaural Beats play slightly different frequencies in each ear (requires headphones). Your brain perceives a third frequency equal to the difference, which may help guide brainwave states like sleep, focus, or relaxation.

Solfeggio Frequencies are specific pure tones (like 528 Hz or 432 Hz) believed to have healing properties. These work through speakers or headphones.

Isochronic Tones are rhythmic pulses of sound that turn on and off. They work through speakers (no headphones needed) and may help with focus and meditation.

Noise Generators (white, pink, brown, etc.) create constant background sounds that mask distractions and aid sleep or concentration.

The free version is generous and fully functional:

• 10 free soundscapes including Deep Sleep, Zen Meditation, Deep Focus, Study Flow, Period Pain Relief, Hot Flash Cool-Down, and Overwhelm Reset
• 5 ambient sounds (rain and nature)
• 4 free noise colors (white, pink, brown, green)
• 2 binaural beat presets for deep sleep
• 3 solfeggio frequencies (174Hz, 285Hz, 396Hz)
• 30-minute timer with smart fade-out
• 1 Custom mix with 2 sound layers to mix sounds

Premium unlocks all 63 soundscapes, 25+ ambient sounds, 15 binaural presets, 10 solfeggio frequencies, unlimited timer, 5+ layers, and more.