Press Release · September 1, 2026

Zengobi announces Curio 34 with Kanban boards, table formulas, and new automation tools

Curio 34 expands the freeform Mac notebook with automatic Kanban boards, Excel-style table formulas, synced collection instances, macOS widgets, and a new CLI with built-in MCP support for scripts and AI agents.

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The image we lead with on the Curio home page. Unlike the captures below it’s device-framed rather than a raw screenshot, which makes it a natural lead image for an article or roundup.

Raleigh, North Carolina Zengobi today announced Curio 34, a major update to its freeform notebook for macOS. Curio brings notes, research, documents, images, PDFs, and tasks together in a single project file on the Mac. The new release adds Kanban boards, table formulas, project-specific tag sets, improved search, macOS widgets, Shortcuts actions, and new automation tools.

Curio 34 also arrives with the Curio CLI, a separate free download for Curio Professional sustainers: customers with an active subscription or a traditional license still within its update window. Command-line users can query and update projects from Terminal or scripts. Bundled skills connect agents such as Codex and Claude Code, while the built-in MCP server provides the same commands to compatible hosts such as Claude Desktop. The project remains a local Curio document; users decide which external tools may read its contents.

“Curio 34 is our biggest release in years, with major functionality customers have been requesting. The new Kanban boards and synced collection instances make it easy to see and manage tasks, while formula support in both regular Curio tables and Markdown tables means tables dynamically update as your data changes. The Curio CLI also opens projects to scripts and AI agents like ChatGPT and Claude for the first time. I’m very excited about this release!”

— George Browning, founder of Zengobi and Curio’s developer since 2002

Kanban Boards

Boards That Build Themselves

Curio has always let people arrange work anywhere on a freeform idea space. Curio 34 adds a collection that does the arranging: a Kanban board that generates one sorted stack for every value in the chosen grouping, such as priority, rating, tag set, or a date like start, due, or last modified. There are no columns to define by hand, and items without a value gather into a fallback stack.

Because the columns come from the data rather than from a fixed layout, dragging a card between stacks updates the underlying value to match the stack it lands in. Move a card into the High stack and its priority becomes high. Curio Professional goes further with Smart Kanban boards, which use a search query to gather matching figures from anywhere in the project into synced instances that stay linked to their originals.

Kanban boards in Curio 34:

  • Generate their stacks automatically from priority, rating, tag sets, or start, due, and last-modified dates.
  • Change the underlying metadata when a card is dragged into a different stack.
  • Group by project-specific tag sets, new in this release, which carry their own colors and ordering.
  • Back a board with a search query, pulling matching figures from across a project into live synced instances.

Table Formulas

Spreadsheet Math Where the Notes Already Are

Tables in Curio Professional now evaluate Excel-style formulas that use column names instead of A1-style coordinates. A formula such as =[@Hours]*[@Rate] refers to the columns by the names in the table’s header row, and a formula written once applies down the whole column without being dragged.

The same column-based formulas work inside rendered Markdown tables, computing running totals and formatted numbers as the data changes. This is an unusual capability among Markdown editors and renderers. Native tables also gained column sorting that leaves header and footer rows fixed in place.

Table formulas in Curio Professional:

  • Use current-row ([@Column]) and whole-column ([Column]) structured references instead of cell coordinates.
  • Cover the common math, statistical, and text functions, including TEXT number formatting.
  • Use the same structured-reference syntax in native Curio tables and rendered Markdown tables.
  • Sort a native table by any column while its header and footer rows stay put.

The Curio CLI and MCP Server

Local Projects, Scriptable Automation

The Curio CLI ships as a separate, free, Apple-notarized download rather than as part of the app, so protocol and security updates can ship independently of Curio releases. It works with both the website and Mac App Store editions of Curio.

It runs two ways. Pointed at the running app, the curio command gets the complete command set, including read and write access and the current selection. Pointed at a .curio file with --project, it reads straight from disk without launching Curio, so unattended reporting and analysis cannot modify a project.

Bundled skills give command-line agents such as Codex and Claude Code programmatic access to the CLI, while the built-in MCP server provides the same commands to compatible hosts such as Claude Desktop. These tools can query and edit a project without driving Curio’s user interface. The project remains a local Curio document and no Curio cloud account is required; users decide which external tools may read its contents.

The Curio CLI can:

  • Query a project or the whole Project Center with Curio’s own search language and return JSON.
  • Read and rewrite figure text, tags, dates, priorities, ratings, checkboxes, and custom data.
  • Import content into idea spaces and export figures, collections, and whole projects.
  • Build and navigate the Organizer, and jump the app to any result.
  • Serve the same commands to AI agents over MCP, with bundled skills for common workflows.

Connecting and Finding Work

References, Synced Instances, and Relevance-Ranked Search

Curio 34 makes the links between the pieces of a project easier to build and follow. A new References inspector panel in Curio Professional attaches references, organized by type, to any figure. They can point to other figures through Curio jump targets or out to the web using a URL on the clipboard, building a cross-reference layer without disturbing the project’s layout.

Copied lists, mind maps, and stacks can now stay linked as synced instances. One list can appear in several places and even take a different shape, such as a mind map, while item text, checkboxes, and progress stay synchronized. Focus mode follows connected idea graphs, and a new navigator Home button returns to a designated starting idea space.

Search was rebuilt around relevance. Results are ranked rather than merely listed, conservative fuzzy search catches close or abbreviated title matches, field names autocomplete as a query is typed, and Curio’s built-in text extraction can search inside PDFs, images, and many open document formats, including supported files embedded in the project.

Also in this release:

  • A References inspector panel for references, organized by type, between figures and out to websites.
  • Synced collection instances that keep copies linked to the original while carrying their own styling or an entirely different shape.
  • Focus mode navigation across connected idea graphs, plus a navigator Home button.
  • Relevance-ranked search with conservative fuzzy search, field autocomplete, and custom-data sorting.
  • Full-text search inside PDFs, images, and many open document formats, including supported files embedded in a project.

Writing, Presenting, and the Desktop

Text Styles, Live Word Counts, and macOS Widgets

Project-wide paragraph and character text styles arrive in Curio 34, updating matching rich text across an entire project from one place, alongside new kerning, line height, and paragraph spacing controls. Curio Professional can also map Markdown styles to them.

A Word Count status bar module shows a live word and character count for the selected content. Its popover adds sentiment along with Flesch-Kincaid, Flesch Reading Ease, Gunning Fog, and Coleman-Liau readability scores, each with a plain-English reading.

Off the canvas, two new macOS widgets put project work on the Desktop or in Notification Center. A Query widget shows results from a specific saved query, while a Status widget mirrors the current grouping and sorting in Curio Professional’s cross-project Status shelf. Clicking any item opens Curio and jumps straight to it. Native Shortcuts actions, built on App Intents, make the same work scriptable from anywhere in macOS.

Rounding out the release:

  • Adornments can sit at any of twelve positions around a figure, and checkboxes can be separated into their own left margin for cleaner task scanning.
  • Embed local HTML files as live, interactive figures. New color tools include sliders, an eyedropper, and generated palettes for lists and mind maps.
  • Jump to any idea space from the context menu while presenting.
  • Mac App Store customers can start a free 14-day trial without beginning a subscription first, and review folder access with the new File > Manage Authorized Folders command.
  • Improvements to Markdown, export, the Organizer, galleries, backups, macOS Tahoe support, performance, and reliability.

Pricing and Availability

  • Curio 34 is available today as a free download from zengobi.com, and starts a two-week trial with every Professional feature enabled. No account and no payment details are required. When the trial ends without a purchase, Curio keeps working in free mode with the Standard feature set and projects of up to five idea spaces; larger projects open read-only for viewing, exporting, and printing.
  • License keys from zengobi.com are a one-time purchase that includes a full year of free major and minor updates. Curio 34 Professional is $119.99 and Curio 34 Standard is $99.99, with academic pricing at $99.99 and $79.99. Upgrades start at $79.99 for Professional and $59.99 for Standard. Crossgrades and volume discounts are available, with an automatic 20% discount on quantities of 20 or more. See the License Key FAQ.
  • Subscriptions are available on the Mac App Store at $6 per month for Curio Professional and $5 per month for Curio Standard when billed yearly, or $8 and $6 per month billed monthly. Apple handles billing and renewals, and all updates arrive automatically. Academic and volume discounts are not available on subscriptions. See the Subscription FAQ.
  • The Curio CLI and its built-in MCP server are a free, separate download for Curio Professional sustainers with either an active Mac App Store subscription or a traditional Curio license within its current update window. There is nothing extra to buy. See the Curio CLI overview.
  • Curio 34 requires macOS 15 Sequoia through macOS 27 Golden Gate, on Apple silicon or Intel (universal binary).
  • Complete details are in the Curio 34 release notes and the Curio 34 documentation.

About Zengobi

Zengobi, Inc. is a one-person software company based in North Carolina. Founder George Browning began building Curio full-time in 2002, shipped version 1.0 in early 2004, and has designed and developed it continuously ever since. Curio is a freeform notebook for macOS that gathers notes, research, documents, and tasks into a single local project file, with integrated tools for brainstorming, outlining, mind mapping, and task tracking. Its customers include designers, writers, students, professors, scientists, project managers, lawyers, and entrepreneurs.

Curio stores each project as a file on the customer’s Mac and requires no Curio account or cloud service. Curio itself does not upload project contents. Extensive import, export, and printing options keep the work usable elsewhere.

Press Contact

George Browning, Founder, Zengobi, Inc.

george@zengobi.com

Mention your publication and deadline, and I’ll get back to you quickly. I’m happy to provide a review license and answer any questions.

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