CarbonFin Outliner vs Checkvist

CarbonFin Outliner organizes thoughts, tasks, and projects in nested outlines. Tasks can contain subtasks, with progress indicators for parent tasks that have them. Its editor supports inline changes, cut, copy, paste, undo, redo, drag-and-drop reordering, search, and controls to collapse or expand items. Outlines can be tagged and filtered by tag, searched across the collection, archived, and optionally numbered. Each outline can include notes, with configurable checkboxes, note previews, and numbering. The iPhone and iPad app costs $4.99, paid once. Outliner Online is a free browser-based companion for syncing, editing, printing, importing, exporting, and sharing outlines. Outliner users can invite other Outliner users to view and edit shared outlines; published outlines can be viewed read-only by anyone with the URL. The app can sync outlines as OPML files with Dropbox or OneDrive, import OPML, and export plain text or OPML. Shared editing through Outliner Online is limited to iPhone or iPad app users. The app lacks native printing, though synced outlines can be printed through Outliner Online in a browser.

Checkvist is a keyboard-first outliner and online task manager for people who organize work and ideas in lists. Its lists support deep hierarchy, keyboard shortcuts, Markdown, code, tables, bulk operations, sorting and backlinks. Tasks can carry tags, due dates, notes, assignees, file attachments, priorities and progress counters. Lists can be shared privately or publicly with read-only or write access, password protection, expiration times and task assignment. Integrations include Zapier, Dropbox, Google Calendar sync, Jira, YouTrack, Slack, browser extensions and an Open API. Its mobile experience is a progressive web app for iOS and Android that syncs and works offline; the Web Clipper can collect tasks, bookmarks and notes from web pages and services including Gmail, Zendesk, Jira and GitHub. The free plan includes unlimited hierarchical lists and sharing, Markdown, due dates, tags, mobile offline use, browser extensions and Open API. PRO costs $3.90 per person per month, billed at $39 per year, and adds features such as task assignment, repeating tasks, Google Calendar synchronization, 2 GB of file storage and MCP access. A 14-day PRO trial is available without a credit card.