SleepisolBio: sleep, alarm

Sleep guidance and alarm tools in one app

SleepisolBio: sleep, alarm is a Health & Fitness app for people who want more than a basic alarm. It examines sleep-related information and biological signals to help users understand their daily rhythm, then suggests suitable times for rest, focus, recovery, and stress management. The app is developed by Lee Sol Co., Ltd and has more than 1,000,000 installs.

Personalized sleep and rhythm features

The app creates a biological rhythm report from sleep and biometric data. Its recommendations are organized around four modes: Sleep, Focus, Healing, and Stress. This gives users a way to plan sound sessions and daily activities around their reported rhythm instead of relying only on a fixed bedtime.

SleepisolBio also includes audio designed for different mental states. The library contains monaural and binaural beats, isochronic tones, and tracks associated with brainwave states such as Theta and Alpha. Wearable heart-rate data can be used for real-time biofeedback, allowing sessions to respond to the user's measured condition.

Alarm functions and device support

For waking up, the app combines alarm sounds with interactive missions, including hand gestures and calculation tasks. These activities are intended to make the user more alert rather than simply stopping the alarm. Some of the app's analysis and smart features depend on Google Health Connect or compatible hardware, such as a Samsung Galaxy Watch.

Ratings and suitability

SleepisolBio: sleep, alarm holds a rating of 3.97 out of 5 from 1,822 reviews. It is best suited to users who want sleep analysis, timed audio sessions, biological-rhythm guidance, and a more active wake-up routine in the same app. Those without compatible health data sources may have access to fewer of its connected features.