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Octarine vs Agenda

Topic-first notes vs a date-first timeline

Agenda and Octarine both keep notes for your projects. The difference is how those notes are organized.

Agenda puts notes on a timeline. Each project is a running log, and notes can link straight to calendar events, which suits meeting notes and dated work. It has polished apps for Mac, iPhone, and iPad, and premium features are a paid unlock you keep.

Octarine organizes notes by topic, with folders, tags, links, and a graph, and Views for structured projects. Daily notes are there when a date helps. Your notes stay as markdown files, and it runs on Windows and Linux too.

Octarine
Agenda
Files
Plain markdown files
Yes
NoAgenda's library, with export
Organization
Structure
Folders, tags, and links
Projects with a dated timeline
Notes linked to calendar events
No
Yes
Daily notes
Yes
YesTimeline by date
Links between notes
Yes
Yes
Graph view
Yes
No
Task managementTasks groups work into projects with statuses, priorities, labels, due dates, subtasks, saved filters, and optional cycles. Each task is a Markdown file in your workspace, and a checkbox in a note can become a task.
YesProjects, list or board, cycles (Pro)
PartlyChecklists, synced with Apple Reminders
ViewsViews show notes and their properties as filtered tables, Kanban boards, or graphs.
YesTables, Kanban, and graphs (Pro)
No
AI
Built-in AIAsk Octarine searches, reads, and follows links across your notes to answer questions. The Writing Assistant edits inline. Indexing stays on your device.
YesYour own key or a local model (Pro)
No
Platforms
Desktop
macOS, Windows, Linux
macOS
iPhone and iPad
PartlyTestFlight for Pro users
Yes
Plans
Free
YesCore features, no time limit
Yes
Paid
Pro $79 one-time
Premium unlock you keep
Sources ยท Checked Nov 4, 2026

Compared against Agenda's App Store listings and help pages. Agenda's pricing page could not be loaded during review, so we describe its pricing model rather than exact prices.

Product names and logos belong to their owners; no affiliation or endorsement is implied.

Something wrong or out of date, including if you work on Agenda? Suggest a correction

Start writing with Octarine.

A fast, private Markdown workspace for capturing ideas, shaping notes, and keeping your writing in files you control.

Download for macOSIncludes a 7-day Pro trial.