Chunk is a Mac time blocking app with two-way Google, Outlook and Apple calendar sync. 7-day free trial, then $39.99 one-time with no subscription.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
Chunk is a native macOS time blocking app that plans around your calendar. It puts tasks, projects and a calendar on one surface that the user slides between: tasks on one side, a day, week or month view on the other. A live countdown for the current block stays visible in the system tray while you work. The site describes it as a zero-bloat planner for real working days.
Chunk was built by an ADHD user around one principle: make time blocking simple enough to use every day. The About page lists ADHD users, students, entrepreneurs, freelancers and anyone who wants better focus as the intended audience. It runs on Apple Silicon and Intel Macs and requires macOS 12 Monterey or later. There is no Windows, Linux or Android version.
Chunk opens from the menu bar. A click on the tray icon or the keyboard shortcut brings the panel up from anywhere, including over fullscreen apps. From there the user drags on the timeline to create blocks, drops tasks from the list onto the day, or applies a recurring template to fill the day in seconds. Each block gets a duration, a color and context.
While a block runs, a live countdown sits in the tray. When it ends, a fullscreen alert appears, and the user can mark the block complete or reschedule it in one click. According to the About page, the schedule resets at midnight so each morning begins with a clean slate. The idea is to plan once in the morning and then follow the day.
The calendar view shows a day, week or month with tasks and Google, Outlook and Apple Calendar events side by side. Clicking a block opens its editor beside it. Tasks can become calendar events and events can become tasks, and a task can repeat on a fixed schedule or a set time after it is finished. Finished blocks fade to grey so color marks only live work.
Tasks hold smart lists, projects, Apple Reminders and recurring templates in one searchable column. Projects have an icon, a color, a deadline, an overview and a finish line, and a large task can be split into sessions. Dragging a whole project onto the calendar schedules a project session. Chunk also ships an optional local MCP server so Claude Desktop can read and edit the schedule.
Chunk is a time blocking app for Mac that plans around your calendar. It puts tasks, projects and a day, week or month calendar on one surface and shows a live countdown in the system tray.
Chunk has a free 7-day trial, then a Lifetime License at $39.99 one-time for 2 Macs and a Family Package at $79.99 one-time for up to 6 Macs. There is no subscription, and future updates are included on paid plans.
Yes. The trial lasts 7 days, includes every feature and needs no credit card. Access stops when it ends, and users can upgrade to a paid plan at any time.
Yes. Chunk offers two-way sync with Google Calendar, Outlook and Apple Calendar. Moving or resizing an external event in Chunk updates the source calendar, and a lock toggle can make external events read-only.
Chunk is a native macOS app for Apple Silicon and Intel Macs and requires macOS 12 Monterey or later. There is no Windows, Linux or Android version. Chunk for iPhone is listed as coming soon as a separate $8.99 App Store purchase.
Yes. Chunk ships an optional local MCP server that connects to Claude Desktop from Settings, then AI Integrations. Claude can read the schedule and create, move or delete events, tasks and templates. The site says the server runs on the Mac.
The schedule is stored locally on the Mac, and Chunk says it does not keep user data on its own servers. If cross-device sync is turned on, data moves through the user's own iCloud account to other Macs.
Chunk is aimed at ADHD users, students, entrepreneurs, freelancers and anyone who wants structure without complexity. It fits individuals who work on a Mac and want to plan their day in time blocks.