3x3 is a minimalist time management tool designed for iPhone users. It offers various functions to enhance productivity and organization. Users can utilize the timeline feature to record daily activities, track moments of focus, and analyze their day effectively. The app also includes a comprehensive to-do list for day, week, month, year, and life goals, allowing users to prioritize tasks efficiently.

Additionally, 3x3 enables users to tag timelines and to-dos for better categorization and organization. With advanced features like custom tabs and progress bars for to-dos, users can create personalized schedules and manage their time effectively. The app supports iCloud synchronization and is compatible with iPad, M1, and Mac devices, providing a seamless user experience across platforms.