일초 is a meditation application designed to enhance mindfulness by presenting users with a visual countdown of their remaining time. This unique feature allows individuals to perceive the passage of time more vividly, encouraging them to cherish the present moment. The app includes several key functionalities such as a lifetime countdown that visualizes the remaining years, seasons, and weeks, and a relationship tracker that calculates the number of encounters left with loved ones.

Additional features include daily reflection prompts that encourage users to contemplate their day, customizable premium themes for a personalized experience, and a home widget for easy access to remaining time. By quantifying time, 일초 aims to help users appreciate each day and live more intentionally, making it a valuable tool for enhancing one's lifestyle.