The Open Sunsama Insider’s Guide
Everything we know about Open Sunsama in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Open Sunsama
The Insider’s Guide
Self-hostable daily planner with time blocking and an MCP server
Every plan, grade, refund rule and rival among daily planner apps, read from Open Sunsama’s own pages.
Made by Circo · checked Oct 9, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Open Sunsama’s own pages, its app-store listings and our grades. Every fact in it is on Open Sunsama’s page too, where it is kept up to date. Checked Oct 9, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
3.2
GPA, above 64 of the 69 other daily planner apps we grade
Open Sunsama is a daily planner modeled on Sunsama: tasks are planned on a kanban board of days, dragged onto a calendar as time blocks and worked through in a focus mode with a timer. It is an independent open-source project and is not made by Sunsama. Its code is public on GitHub under a non-commercial license and can be self-hosted with Docker. A hosted MCP server and a REST API let AI assistants such as Claude and ChatGPT read and change the plan.
To get you started, here are 8 things to know about Open Sunsama, taken from its own pages and our grades.
Self-hosters work through the web app, since the desktop apps only connect to the hosted one.
- 1
Best for Sunsama-style planning you can host yourself
It's free for non-commercial use, hosted or on your own server with Docker.
- 2
There is a free plan
Free of charge for non-commercial use under its license: personal, educational, non-profit and non-commercial open-source use, plus evaluation. The site states no price for the hosted app.
- 3
It runs on 4 platforms
Web, macOS, Windows and Linux.
- 4
Kanban board of days
Tasks sit on a board with a column per day and a backlog. Each task can carry a P0 to P3 priority, a time estimate, subtasks, rich-text notes and attachments.
- 5
Drag-and-drop time blocking
Dragging a task onto the calendar creates a block linked to that task, and resizing the block sets its length. The calendar has day, 3-day, week and month views.
- 6
Calendar sync
Events from Google Calendar, Outlook and iCloud appear next to tasks and time blocks, so a day is planned around existing meetings.
- 7
A 3.2 GPA, above 64 of 69
That is against the other daily planner apps we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
The plain part of Open Sunsama you could make: tasks, time blocking, calendar and kanban boards. What surrounds it you could not. The 3 things listed below take a company, not a weekend.
Open Sunsama at a glance
- Pricing
- Free plan
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- Web, macOS, Windows, Linux
- Made by
- Circo
- Category
- Daily Planner Apps
- Our grade
- 3.2 GPA, very good
The report card
Best for Sunsama-style planning you can host yourself
Open Sunsama is an independent open-source take on Sunsama's way of planning, not something Sunsama makes: a board of days, tasks dragged onto a calendar as time blocks, and a focus timer. It's free for non-commercial use, hosted or on your own server with Docker. But for-profit companies need an enterprise license with no public price, there's no phone app, and team workspaces and auto-scheduling are still roadmap items.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | Nothing to pay for personal, educational or non-profit use, with no paid tier holding features back, when the rest of this category wants $5.99 a month in the middle. For-profit companies need an enterprise license, asked for by email, with no price published. |
| Free plan and trial | A | For non-commercial use it's free under its license, with no paid tier and no caps on record. You can use the hosted app or run the whole thing on your own server. |
| Features | B | It covers the planning job: a board with a column per day, drag-and-drop time blocking, Google, Outlook and iCloud events alongside, a focus timer that logs real time against your estimate, rollover and repeating tasks, a REST API and an MCP server. Auto-scheduling and team workspaces are still roadmap items. |
| Ease of use | C | No store rating on record, and there's wiring to do: calendars to connect, API keys if you want the MCP server, and Docker Compose if you self-host. Self-hosters work through the web app, since the desktop apps only connect to the hosted one. |
| Platforms and integrations | B | Web, Mac, Windows and Linux, with calendar sync, a REST API and an MCP server for Claude, ChatGPT and Cursor. But there's no native phone app yet, so on a phone it's a mobile web app. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Open Sunsama is for
- Fits if you plan Sunsama's way and want code you can read and host yourself
- Works for planning your day through Claude or ChatGPT with its MCP server
Who it is not for
- Skip it if you want a real phone app, as it's a mobile web app in the browser for now
- Not for you if you're a for-profit company, since that needs an enterprise license with no public price
- Too light for teams, because team workspaces haven't shipped yet
- Watch out: auto-scheduling and the Linear, GitHub, Jira and Notion links are unchecked roadmap items, not features
- Tight if you self-host, as the desktop apps only connect to opensunsama.com and you're left with the web app
Good to know
Good for
- People who want Sunsama-style daily planning with code they can read
- Planning a day through Claude, ChatGPT or another MCP client
- Individuals who want to self-host their planner with Docker
Worth knowing
- The license is non-commercial: personal, educational and non-profit use is free, and for-profit companies need an enterprise license with no public price.
- There is no native phone app yet; on a phone it runs as a mobile web app in the browser.
- The desktop apps connect only to opensunsama.com, so a self-hosted install is used through the web app.
- Team workspaces, auto-scheduling and integrations with Linear, GitHub, Jira and Notion are unchecked roadmap items, not shipped features.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
2
plans to choose from
Open Sunsama has a free plan.
For-profit companies need an enterprise license, asked for by email, with no price published.
Non-commercial use
$0
The license provides the software free of charge for personal, educational, non-profit and non-commercial open-source use, and for evaluation.
Enterprise license
Custom
Required for commercial use, including for-profit companies running it in production. Requested by email; no price is published.
The free plan
Free of charge for non-commercial use under its license: personal, educational, non-profit and non-commercial open-source use, plus evaluation. The site states no price for the hosted app.
Read from github.com on Oct 9, 2026.
Ways to pay less
Nonprofit
Free for non-profit organizations
The license lists non-profit organization use among the permitted uses that are free of charge, while for-profit companies need an enterprise license.
Stated on github.comEducation
Free for educational use
Educational use is one of the permitted non-commercial uses that the license provides free of charge.
Stated on github.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
4
Places it runs: Web, macOS, Windows and Linux
Self-hostable daily planner with time blocking and an MCP server. Here is what it does, as its own site describes it, and what it covers: open source, self-hostable, public API, tasks, time blocking, calendar, kanban boards.
Auto-scheduling and team workspaces are still roadmap items.
- Kanban board of days
- Tasks sit on a board with a column per day and a backlog. Each task can carry a P0 to P3 priority, a time estimate, subtasks, rich-text notes and attachments.
- Drag-and-drop time blocking
- Dragging a task onto the calendar creates a block linked to that task, and resizing the block sets its length. The calendar has day, 3-day, week and month views.
- Calendar sync
- Events from Google Calendar, Outlook and iCloud appear next to tasks and time blocks, so a day is planned around existing meetings.
- Focus mode and rollover
- Focus mode shows one task with a timer and records actual time against the estimate. Unfinished tasks roll over to the next day, and recurring tasks repeat on their own.
- MCP server for AI agents
- A hosted MCP server with 24 tools lets Claude, ChatGPT, Cursor and other MCP clients read the schedule and create or move tasks and time blocks after an OAuth sign-in.
- REST API and self-hosting
- A REST API with scoped API keys covers tasks, time blocks and ideas. The app can be run on your own server with Docker Compose, which starts PostgreSQL, Redis, the API and the web app.
Where it runs
- Web
- macOS
- Windows
- Linux
What it works with
- Google Calendar
- Outlook
- iCloud
- Claude
- ChatGPT
- Cursor
- VS Code
- Claude Code
Open Sunsama is made by Circo.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
64/69
Other daily planner apps it is graded above
Open Sunsama's GPA of 3.2 is higher than 64 of the 69 other daily planner apps we grade, and level with 3.
It stands best on free plan and trial (A, above 63 of 69) and worst on ease of use (C, above 0).
Each grade against the category
Every bar is all 70 daily planner apps we grade, cut by the letter each got. Open Sunsama’s own letter is outlined.
- AValue for moneyAbove 54 of 69
- AFree plan and trialAbove 63 of 69
- BFeaturesAbove 32 of 69
- CEase of useAbove 0 of 69
- BPlatforms and integrationsAbove 25 of 69
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
The plain part of Open Sunsama you could make: tasks, time blocking, calendar and kanban boards. What surrounds it you could not. The 3 things listed below take a company, not a weekend.
It is one of the better ones too: its GPA of 3.2 is higher than 64 of the 69 other daily planner apps we grade. Open Sunsama is open source, so there is a third way: take its code and run it yourself.
What you could make
- Tasks, time blocking, calendar and kanban boards: an app builder makes these well.
What you could not
- Apps for macOS, Windows and Linux that stay in step with each other.
- It plugs into other products, Google Calendar, Outlook and iCloud among them, and has an API.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Open Sunsama’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Sunsama, Akiflow, Motion, Super Productivity and Will Be Done
The 5 tools Open Sunsama is most often weighed against, with where each one differs from it.
- 2.6GPA
Sunsama
Free trial · from $17/mo
Daily planner with guided planning routines and calendar timeboxing.
- Open Sunsama has a free plan. Sunsama does not, though it has a free trial.
- Only Sunsama lists iOS and Android apps.
- Open Sunsama is open source and self-hostable, according to its own site.
- 2.2GPA
Akiflow
Free trial · from $19/mo
Time-blocking planner that pulls tasks from other apps into one inbox.
- Open Sunsama has a free plan. Akiflow does not, though it has a free trial.
- Only Open Sunsama lists a Linux app.
- Only Akiflow lists iOS and Android apps.
- 2.4GPA
Motion
Free trial · from $19/mo
AI work planner that auto-schedules tasks on your calendar.
- Open Sunsama has a free plan. Motion does not, though it has a free trial.
- Only Open Sunsama lists a Linux app.
- Only Motion lists iOS and Android apps.
- 3.4GPA
Super Productivity
Free
Free, open-source to-do app with time tracking and a Pomodoro timer.
- Only Super Productivity lists iOS and Android apps.
- Open Sunsama is self-hostable, according to its own site.
- Open Sunsama also covers time blocking and calendar.
- 3.0GPA
Will Be Done
Free
Open-source weekly task planner that works offline and self-hosts.
- Open Sunsama also covers time blocking and calendar.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
14
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Open Sunsama free?
Open Sunsama has a free plan. Free of charge for non-commercial use under its license: personal, educational, non-profit and non-commercial open-source use, plus evaluation.
How much does Open Sunsama cost?
Open Sunsama lists 2 plans. Non-commercial use: $0.
What platforms does Open Sunsama work on?
Open Sunsama is available on Web, macOS, Windows and Linux.
Does Open Sunsama offer any discounts?
Open Sunsama publicly lists the following: Free for non-profit organizations; Free for educational use.
Does Open Sunsama have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Open Sunsama is listed for Web, macOS, Windows and Linux.
Does Open Sunsama have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Open Sunsama is listed for Web, macOS, Windows and Linux.
Is Open Sunsama open source?
Yes. Open Sunsama is open source, according to its own site.
Does Open Sunsama have an API?
Yes. Open Sunsama offers a public API, according to its own site.
What does Open Sunsama integrate with?
Open Sunsama's listing names Google Calendar, Outlook, iCloud, Claude, ChatGPT, Cursor, VS Code and Claude Code.
Does Open Sunsama have a student discount?
Free for educational use. Educational use is one of the permitted non-commercial uses that the license provides free of charge.
Who makes Open Sunsama?
Open Sunsama is made by Circo.
What are the alternatives to Open Sunsama?
The closest alternatives to Open Sunsama in our directory are Sunsama, Akiflow, Motion, Super Productivity and Will Be Done.
How does Open Sunsama compare with other daily planner apps?
Open Sunsama's GPA of 3.2 is higher than 64 of the 69 other daily planner apps we grade, and level with 3.
Could I make my own version of Open Sunsama?
The plain part of Open Sunsama you could make: tasks, time blocking, calendar and kanban boards.
Where this guide comes from
The prices, plans, platforms and features were read from Open Sunsama’s own pages on Oct 9, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Open Sunsama's own pages on 9 October 2026. Also tested with a demo account on 2026-04-28.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Circo. Prices change, so check opensunsama.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Open Sunsama, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/open-sunsama
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Open Sunsama: The Insider's Guide", checked Oct 9, 2026. https://toolgpa.com/tools/open-sunsama
Know someone choosing between daily planner apps?
Send them this guide: toolgpa.com/tools/open-sunsama/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded daily planner apps after Open Sunsama, each with an Insider's Guide of its own.
- Daily Planner Apps Insider's GuideEvery one of the 70 daily planner apps we grade, compared
- Hero Assistant Insider's GuideDaily assistant app combining calendar, to-dos, habits and notes3.4 GPA
- LiveIt Insider's GuidePersonal organizer joining planner, journal, notes and habits3.4 GPA
- Pocket Informant Insider's GuideCalendar, tasks, projects and notes in one personal organizer3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Open Sunsama’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Open Sunsama is a trademark of its owner, and this guide is not made, paid for or approved by Circo. Prices and plans change: check opensunsama.com before you buy.