Endel

Endel is an app for mobile, desktop, and web for individuals who want AI-generated soundscapes for focus, relaxation, sleep, and movement, personalized in real time.

Key capabilities include:

• Real-time adaptive soundscapes that react to local inputs such as time of day, weather, heart rate (with Apple Watch), and movement/cadence, generating audio endlessly on-device.
• Modes and sessions for different goals, including Focus, Relax, Sleep, and Move, plus Scenarios that run timed sessions with predefined phases (start, middle, end).
• Premium content and playback options, including offline listening, Colored Noise (9 colors), Spatial Orbit, Outside, Recovery, a Focus Timer, and artist collaborations.
• Generative visuals paired with each soundscape to match the listening state.

Pricing: Freemium. The free version lets you start unlimited Focus, Sleep, Relax, and Move sessions of up to 10 minutes each; Endel Premium (subscription) unlocks unlimited access, and a 7-day free trial is available with a yearly subscription. Check endel.io for current prices. Endel also offers Endel for Teams and Endel for Students.

Notable for its distinction between endlessly generated Soundscapes and timed Scenarios, plus audio tuned to 440 hertz to help reduce cognitive load, with neuroscience-backed research referenced on its site.