Lief App is a discreet and clinically-accurate smart-patch designed to measure your heart rate and heart rate variability. It offers guided biofeedback exercises to help you control your body's natural stress response. With Lief, you can improve your health, enhance mindfulness, and stay in control throughout your day.

The app provides on-demand stress relief interventions that are 100% drug-free. It offers a safe and gentle approach to manage stress and improve overall well-being. Lief's biofeedback exercises are designed to train you in controlling your body's stress response, ultimately helping you reduce stress levels and improve your health.

Lief App is a valuable tool for anyone looking to enhance their mindfulness and manage stress effectively. With its discreet and accurate heart rate monitoring, it provides real-time insights into your body's response to stress, allowing you to make informed decisions and take control of your well-being.