Chunk vs nocal: Which AI Calendar App tool is Best in 2025?

Chunk is a minimalist time-blocking app for macOS designed to enhance productivity by helping users plan their day in focused, manageable chunks. Unlike traditional calendars, Chunk focuses on single-day planning, offering a zero-bloat interface that eliminates distractions and promotes deep work. It integrates seamlessly with Apple, Google, and Outlook calendars, allowing users to time-block around existing schedules. Key features include customizable templates, routines for recurring tasks, a menubar timer, instant task creation, and fullscreen notifications.

nocal is an innovative AI-powered calendar app designed for extremely busy professionals who need to stay organized and focused. Unlike traditional calendars that rely on rigid grid views, nocal adapts to your workflow, providing a minimalist interface that transforms every week into a dynamic project board. It allows quick access to upcoming events while minimizing clutter, automatically highlighting what matters most to keep users focused. It enables seamless referencing of meetings in notes and notes in meetings, creating a web of connected thoughts that evolves with your work. It supports offline note-taking with full markdown, allowing users to embed task lists, tables, sub-notes, and meeting notes, turning weekly plans into comprehensive project boards. It is developed by Muse Tech, LLC, and is free to use on Mac and Windows, with a lifetime license option to unlock premium features.